دانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Evaluation of Some Physical Properties of Sixteen Iranian Indigenous Barberry Genotypesارزیابی برخی ویژگیهای فیزیکی شانزده ژنوتیپ زرشک بومی ایران5495623987610.22067/jhs.2021.58409.0FAمهسا خدابندهدانشگاه فردوسی مشهد0000-0002-0507-0441مجید عزیزیدانشگاه فردوسی مشهداحمد بالندریگروه ایمنی و کنترل کیفیت مواد غذایی، موسسه پژوهشی علوم و صنایع غذایی مشهدحسین آروییدانشگاه فردوسی مشهد0000000254938200Journal Article20160531Introduction
Barberries are a broad class of spiny evergreen or deciduous shrubs belonging to the<em> Berberidaceae</em> family. They are of great importance due to their different parts' nutritional and medicinal properties and their ornamental applications. Genus <em>Berberis</em>, the biggest genus in <em>Berberidaceae</em>, includes more than 660 species. Barberry grows in Asia and Europe and has been used extensively as a medicinal plant in traditional medicine. In Iranian traditional medicine, several properties, such as antibacterial, antipyretic, antipruritic and antiarrhythmic<em>, </em>have been reported with unknown mechanisms of action. Incredible structural diversity among barberries' active components makes them a valuable source of novel therapeutic compounds. Seedless barberry (<em>Berberis integerrima '</em>Asperma') is one of Iran's valuable indigenous medicinal plants. Common asexual propagation of this plant over the years and consequently low genetic diversity in populations of the seedless barberry restricts selection outcomes in breeding programs. Utilizing the indigenous wild genotypes of the barberry genus, which are easily able to cross-pollinate, is one of the best methods to increase genetic diversity. Accordingly, several wild seedy barberry genotypes were identified from all over Iran, collected and established in a collection in Mashhad; then, 16 genotypes were selected and their physical properties were studied.
Materials and Methods
In this study, ripe fruits of sixteen unique genotypes (i.e., Iranian seedless barberry and fifteen seedy genotypes) were harvested in October- November 2015 and kept in a refrigerator in order to measure some of their physical properties in fresh fruits (berry dimension, 100-berry weight, juice content and color indices). For other properties, fruits were dried at room temperature. Fruit cluster length was measured by means of a ruler, the number of berries/cluster and the number of set/aborted seeds in berry by counting, berry dimensions by a digital caliper, weight of fresh and dried 100-berry, percentage of pulp and seed as well as fruit juice content by a scale with 0.001 accuracy. Moisture content was determined using an oven with 75 ºC temperature for 48 hours. Color indices, including L*, a* and b*, were measured using a portable colorimeter (Konica Minolta Chroma Meters CR-410). This study was performed using a completely randomized design with three replications. Data were analyzed by Minitab software version 16 using analysis of variance (ANOVA), and differences among means were determined for significance at p<0.05 using the Bonferroni test.
Results and Discussion
The results indicated significant differences among genotypes. Based on the results, cluster length ranged between 1.67cm (code 5-3) and 6.29 cm (code 10-1); moisture content was between 8.20% and 11.84% in genotypes 8-3 and 13-2, respectively. The fruit juice content range of the studied genotypes was between 51.22% and 71.87%. Genotype 2-1 had the highest dimension values and the highest 100-berry fresh weight (30.72g) and dry weight (10.00g) fruits. The lowest weights of 100-berry were related to 14-1 and seedless barberry. Genotypes 5-2 had the highest pulp percentage (98.17%) and the lowest seed percentage (1.50%) and 10-1 had the lowest pulp percentage (51.93%) and the highest seed percentage (48.07%). The highest number of set seeds (1.73) and the lowest number of aborted seeds (zero) were found in (10-1) and (14-2), respectively. Based on the results, seedless barberry had the lowest number of set seeds (0.00) and the highest number of aborted seeds (3.27). Regarding fruit color indices, genotypes showed significant variability from orange to brown and dark blue. Color indices L*, a* and b* ranged (from 22.83 to 38.13), (2.31 to 37.76) and (1.18 to 2.28), respectively.
Conclusion
In conclusion, it can be said that all genotypes have considerable variability in fruit traits (color, fruit dimensions, pulp/seed percentage, moisture content, etc.). Based on the result of this study, genotype 5-2 was the most similar genotype to seedless barberry. The seedless barberry populations have low genetic diversity due to asexual propagation through suckers over many years. Indigenous genotypes can be a valuable genetic resource for future breeding programs to improve the quantitative and qualitative characteristics of seedless barberry and introduce new cultivars of seedless barberry with different colors and consequently different nutritional- medicinal properties.زرشکها (<em>Berberis</em> spp.) گروه بزرگی از درختچههای خاردار همیشهسبز یا خزاندار متعلق به خانواده زرشک (Berberidaceae) هستند که به دلیل کاربردهای متعدد از قبیل مصارف خوراکی، خواص دارویی اندامهای مختلف آنها در پزشکی و همچنین به عنوان گیاهان زینتی از اهمیت ویژهای برخوردارند. گونههای زرشک با توجه به تنوع زیادی که دارند، یکی از ذخایر توارثی گیاهی ارزشمند کشورمان محسوب میشوند. یکی از اقدامات اولیه در مورد بهنژادی و بهبود کیفی محصول زرشک بیدانه، شناسایی و جمعآوری انواع ژنوتیپهای وحشی بیدانه و دانهدار زرشک میباشد. در پژوهش حاضر شانزده ژنوتیپ زرشک بومی ایران (زرشک بیدانه و پانزده ژنوتیپ دانهدار) از لحاظ برخی خصوصیات فیزیکی ارزیابی گردید. دامنه مقادیر این صفات شامل طول خوشه (29/6 - 67/1 سانتیمتر)، تعداد حبه در خوشه (90/23- 67/4 عدد)، طول حبه (87/11- 66/7 میلیمتر)، قطر حبه (39/7- 74/4 میلیمتر)، تعداد بذور سالم (73/1- 0 عدد)، تعداد بذور سقط شده (27/3- 0 عدد) در حبه، وزن صد حبه تازه (72/30- 89/10 گرم) و خشک (00/10- 32/3 گرم)، درصد گوشت (17/98- 93/51 درصد) و درصد بذور (07/48- 50/1 درصد)، درصد آّبمیوه (87/71- 22/51 درصد)، درصد رطوبت (84/11- 20/8 درصد) و شاخصهای رنگ L (13/38- 83/22)، a (76/37- 31/2) و b (52/21- 23/3-) تعیین شد. رنگ میوه ژنوتیپهای زرشک مورد بررسی بسیار متنوع و از رنگ نارنجی تا قهوهای و آبی تیره متغیر بودند. ژنوتیپ 2-5 بیشترین شباهت را از لحاظ ویژگیهای فیزیکی به زرشک بیدانه داشت. در مجموع میتوان اظهار نمود که ژنوتیپهای زرشک مورد بررسی از نظر خصوصیات میوه (رنگ، ابعاد حبه، درصد گوشت و بذر و غیره) تنوع قابل توجهی داشته و مواد ژنتیکی ارزشمندی جهت پژوهشهای بهنژادی آینده در زمینه بهبود خصوصیات کمی و کیفی ریزمیوه زرشک میباشند.https://jhs.um.ac.ir/article_39876_975660b1e97c4b297f47093ea74f6692.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122The Effect of Potassium Foliar Application on Cucumber Plants of ‘Miran’ Cultivar under Drought Stressتأثیر محلولپاشی پتاسیم بر بوتههای خیار رقم ‘Miran’ تحت تنش خشکی5635764015610.22067/jhs.2021.67249.0FAمحیا ساجدی مهردانشگاه صنعتی اصفهانمریم حقیقیگروه علوم باغبانی،دانشگاه صنعتی اصفهانمنیره محنت کشدانشگاه صنعتی اصفهانJournal Article20210105<span style="background: white;">Introduction</span>
<span lang="X-NONE">Drought stress is one of the most important factors limiting plant growth and production and leads to a reduction of more than 50% in the average production of most crops worldwide. Drought stress due to increased soil osmotic potential, especially in greenhouses where fertilizer consumption is high, is one of the greenhouse crop problems.</span>
<span style="background: white;">Material and Methods </span>
<span lang="X-NONE">In the present study, two concentrations of polyethylene glycol at three levels of 0 (D1), -1.48 (D2), 4-91 (D3 ds/m to create different levels of drought stress due to osmotic changes in culture medium and application of KCl two levels (0 (K1) and 6 (K2) mmol / l) was used to reduce the possible effects. The experiment was performed as a factorial experiment in a completely randomized design with three replications. To apply drought stress, pot water was measured using a tensiometer, and when the drought reached below the field capacity (FC), irrigation with different concentrations of PEG and once a week spraying with KCl at the desired concentrations was done. Cucumber seeds were planted directly in 5 kg plastic pots containing a mixture of potting soil, including soil + sand + animal manure in the ratio of 1 + 2 + 0.5. The number of seedlings in each pot was 2 to 3 kg, which was reduced to one seedling seventeen days after sowing the seeds in the stage of three to four leaves. KCl spraying and spraying began in the three to the four-leaf stage of the seedlings and lasted for about a month. The plants were kept in the greenhouse during the experiment with an average temperature of 25 ° C and relative humidity of 70%. At the end of the experiment, dry weight, fresh weight, chlorophyll, chlorophyll fluorescence, flavonoids, carotenoids, proline, phenol, total protein, abscisic acid, superoxide, and ascorbate peroxidase, antioxidants, and catalase were measured.</span>
<span style="background: white;">Result</span>
<span lang="X-NONE">The results showed that the effect of foliar application of potassium in all traits except chlorophyll fluorescence and superoxide dismutase was significant (P <0.01). According to the obtained results, ccontrol treatment increased the amount of antioxidants and catalase, but the application of K2 on most of the measured parameters, including dry weight, fresh weight, chlorophyll, flavonoids, carotenoids, proline, phenol, total protein, abscisic acid, and superoxide disodium showed a positive effect. In D3 with the addition of K2 the highest amount of phenol and protein was observed. Also, the content of abscisic acid in all treatments increased with the addition of K2 and the highest amount was observed in D3 which can be concluded that the use of potassium at a concentration of 6 mM Acceptable cut. According to the results obtained in this study, it can be stated that the plant tries to maintain its osmotic pressure in the face of drought stress, and this is done by increasing osmolites such as proline and antioxidant enzymes that help maintain plant cell pressure and torsion. Potassium application can reduce the adverse effects of drought stress by improving the activity of antioxidant enzymes and preserving chlorophyll. Thus, the cell continues its vital activities and ultimately produces more acceptable performance under these conditions. In other words, increasing the antioxidant activity in drought conditions along with the application of potassium leads to a higher inhibitory capacity of reactive oxygen species and production stability in these conditions. Therefore, to compensate for at least some harmful effects of stress and help the plant to return to normal growth conditions after re-irrigation, foliar application of such elements can be effective in drought resistance of the plant and play a role. Based on the findings of this study, it seems that the application of potassium with a concentration of 6 mM is the most effective.</span>تنش خشکی ناشی از افزایش پتانسیل اسمزی خاک به ویژه در گلخانهها که مصرف کود زیاد است یکی از مشکلات کشتهای گلخانهای محسوب میشود. در پژوهش حاضر آزمایش فاکتوریل در قالب طرح کاملاً تصادفی با سه غلظت پلیاتیلنگلایکول (صفر، 48/1- و 91/4- (دسیزیمنس بر متر) و استفاده (6 میلیمولار) و عدم استفاده از کلریدپتاسیم جهت کاهش احتمالی اثر خشکی بر روی گیاه خیار انجام شد. صفات مورد مطالعه شامل وزن خشک، وزن تر، محتوی کلروفیل، کلروفیلفلورسانس، فلاونوئید، کاروتنوئید، پرولین، فنول، پروتئین کل، اسیدآبسیزیک، سوپراکسید و آسکوربات پراکسیداز، آنتیاکسیدان و کاتالاز بودند. نتایج بدست آمده، نشان داد که اثر محلولپاشی پتاسیم در تمام صفات به غیر از میزان کلروفیلفلورسانس و سوپراکسیددیسموتاز معنیدار <em>p</em><em>≤</em><em>0.01</em>)) بود. با توجه به نتایج به دست آمده عدم استفاده از کلریدپتاسیم موجب افزایش میزان آنتیاکسیدان و کاتالاز گردید اما کاربرد کلریدپتاسیم روی اکثر پارامترهای اندازهگیری شده ازجمله میزان وزن خشک، وزن تر، کلروفیل، فلاونوئید، کاروتنوئید، پرولین، فنول، پروتئین کل، اسیدآبسیزیک، سوپراکسیددیسموتاز و آسکوربات پراکسیداز تأثیر مثبت نشان داد. در غلظت 91/4- دسیزیمنس بر متر با افزودن کلریدپتاسیم بیشترین میزان فنول و پروتئین مشاهده شد. همچنین محتوای اسیدآبسیزیک در تمام تیمارها با افزودن کلریدپتاسیم افزایش یافت و بیشترین میزان در غلظت 91/4- دسیزیمنس بر متر مشاهده شد. از این پژوهش میتوان نتیجه گرفت کاربرد کلریدپتاسیم میتواند آثار سوء تنش خشکی را به میزان قابل توجهی، در شرایط مشابه بر روی خیارکاهش دهد.https://jhs.um.ac.ir/article_40156_a0e542bac2f487cc7bf6cafa4dc68201.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122The Effect of Foliar Spray of different Calcium Sources on Antioxidant Properties and Quality of Cauliflower (Brassica oleracea cv. botrytis ‘Romanesco’)تأثیر محلولپاشی برگی منابع مختلف کلسیم بر کیفیت و ویژگیهای آنتیاکسیدانی کلم گل رقم ’رومانسکو‘ (Brassica oleracea cv. botrytis ‘Romanesco’)5775894035010.22067/jhs.2021.70150.1047FAرضا نجفیگروه علوم باغبانی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایرانطاهر برزگرگروه علوم باغبانی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایرانJournal Article20210505Introduction
Cauliflower is one of the world’s most important vegetable crops. The edible head of the cauliflower is called curd, which is composed of many florets formed of aborted floral meristems. Curd has various components with high nutritional value including glucosinolates, vitamin A and C, phenolic compounds, and carotenoids, which exert beneficial effects on our health. Calcium is an essential macronutrient that plays a vital role in maintains cell wall stability, integrity and determining the fruit quality. Several researches have explored the effects of calcium salts on plant growth and quality in many horticulture crops. Various studies indicate that Ca<sup>2+</sup> reduced peroxidation of lipid, increased activity of antioxidant enzyme and improve osmotic adjustment of cell membranes. Plant roots absorb calcium from the soil solution in the form of Ca<sup>2+</sup> ions. The mobility of calcium in plant is low, and the root uptake from fertilized soils is poorly effective in increasing the calcium content in leaves and fruits. Deficiency of Ca will appear in younger leaves and in fruits, due to its low rate of transpiration. Thence, it is necessary to have a constant supply of calcium to continue growing. The direct application of liquid source of calcium on leaves and fruits may offer an alternative solution. The efficiency of foliar application with Ca depends on the source of Ca and applied dosage. To our knowledge, however, little information is available regarding the effect of different calcium sources on cauliflower. Thus, the aim of this study was to investigate the effect of foliar spray of calcium sources on quality and antioxidant properties of cauliflower cv. Romansco.
Material and Methods
In order to evaluate the effect of different sources of calcium on antioxidant properties and quality of cauliflower cv. Romansco, the field experiment was carried out as a randomized complete block design with three replication during 2018 at Research farm of faculty of Agriculture, at the University of Zanjan, Iran. Cauliflower plants (cv. Romanesco) were cultivated by applying conventional farming practice for growing in open air conditions. Different calcium sources including calcium nitrate (Ca(NO3)<sub>2</sub>, 0.5, 1 and 1.5 %), calcium chloride (CaCl<sub>2</sub>, 0.3, 0.6 and 0.9 %) and calcium lactate ( C<sub>6</sub>H<sub>10</sub>CaO<sub>6</sub>, 0.5, 1 and 1.5 g L<sup>-1</sup>) were sprayed in vegetative stage and 10 days after curd formation for 2 times onto the leaves and curd until runoff using a mechanical mist sprayer. Distilled water was used as a control. Potassium, phosphorus, total soluble content, titratable acidity, ascorbic acid content, total phenols and flavonoids, free radical scavenging activity (DPPH) were measured. Statistical analyses were performed with SPSS software package v. for Windows, and means comparison were separated by Duncan’s multiple range tests at p < 0.05.
Results and Discussion
<strong> </strong>The results showed that foliar spray of different Ca sources significantly increased K content and decreased P content. The highest amount of K (5.6 µg mg<sup>-1</sup>DW) was achieved in CaCl 0.9% treatment. The highest value of flavonoids (0.86 and 0.85 %) was found in plants treated with CaL 1.5 g L<sup>-1</sup> and CaCl 0.9%, respectively. In this study, also it was found that foliar spray of CaN 1.5% and CaCl 0.9% increased respectively 49.3 and 40.4% vitamin C content compared to control plants. Ca application with increasing phenolic compound and vitamin C contents, improved antioxidant capacity and the maximum antioxidant capacity (26.19%) was found in CaL 1.5 g L<sup>-1</sup> and CaN 1.5% treatments. Application of Ca sources increased TA and TSS content. The highest TSS content (12.5 and 13.3 ºB) was achievd in CaCl 0.9% and CaL 1.5 g L<sup>-1</sup> and the maximum TA (28.8%) was found in plant treated with CaCl 0.9%. In this regard, foliar application of high level of calcium sources was more efficient than of lower levels on cauliflower quality. Therefore, the leaf application of calcium can be effective in improving the quality of vegetables, especially cauliflower.
Conclusion
<strong> </strong>Study results suggest that spraying different Ca source improved quality and antioxidant properties of cauliflower cv. Romanesco, so that with the application of Ca salts increase K, vitamin C, phenol and flavonoids contents. Among the calcium treatments used, higher levels of all three salts of CaCl, CaN and CaL had the most influence, so these calcium treatments are recommended to improve the quality and antioxidant properties of Romanesco cultivar.بهمنظور ارزیابی تاثیر منابع مختلف کلسیم بر خواص آنتیاکسیدانی و کیفیت کلمگل رقم ’رومانسکو‘، آزمایشی به صورت طرح بلوکهای کامل تصادفی در سه تکرار، در مزرعه تحقیقاتی دانشگاه زنجان در سال 1397 انجام شد. تیمارهای آزمایشی، محلولپاشی برگی منابع مختلف کلسیم شامل کلرید کلسیم (3/0، 6/0 و 9/0 درصد)، لاکتات کلسیم (5/0، 1 و 5/1 گرم در لیتر) و نیترات کلسیم (5/0، 1 و 5/1 درصد) و محلولپاشی با آب مقطر به عنوان شاهد بود. نتایج نشان داد که محلولپاشی برگی کلسیم، مقدار پتاسیم را بهطور معنیداری افزایش و فسفر را کاهش داد و بیشترین مقدار پتاسیم (6/5 میکروگرم بر گرم ماده خشک) در گیاهان تیمار شده کلرید با کلسیم 9/0 درصد حاصل شد. بیشترین میزان فلاونوئید (86/0 و 85/0 میلیگرم در 100 گرم وزن تر) به ترتیب در گیاهان تیمار شده با لاکتات کلسیم 5/1 گرم در لیتر و کلرید کلسیم 9/0 درصد به دست آمد. محلولپاشی برگی نیترات کلسیم 5/1 درصد و کلرید کلسیم 9/0 درصد، محتوای ویتامین ث را به ترتیب 3/49 درصد و 4/40 درصد در مقایسه با شاهد افزایش دادند. کاربرد کلسیم با افزایش مقدار ویتامین ث، فنل و فلاونوئید کل، ظرفیت آنتیاکسیدانی کلمگل را بهبود بخشید. کاربرد ترکیبات کلسیمی محتوای مواد جامد محلول کل و اسید قابل تیتراسیون را افزایش دادند بهطوری که بیشترین مقدار مواد جامد محلول (5/12 درصد بریکس) و اسید قابل تیتراسیون (84/28 درصد) در تیمار کلرید کلسیم 9/0 درصد حاصل شد. بنابراین با توجه به نتایج حاصل، کاربرد نیترات کلسیم 5/1 درصد، کلرید کلسیم 9/0 درصد و لاکتات کلسیم 5/1 گرم در لیتر جهت بهبود خواص آنتیاکسیدانی و کیفیت کلمگل پیشنهاد میگردد.https://jhs.um.ac.ir/article_40350_a0feb0885292053bd6d9bde26825b596.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122The Effect of Application of Vermi-compost and Plant Growth Promoting Bacteria (PGPR) on Yield, Vegetative Traits and Secondary Metabolites of Basil (Ocimum basilicuum L.)تاثیر کاربرد ورمیکمپوست و باکتریهای محرک رشد گیاه (PGPR) بر عملکرد، صفات رویشی و متابولیتهای ثانویه ریحان (L. Ocimum basilicuum)5916024216110.22067/jhs.2022.69740.1059FAسلیمه مختومیگروه باغبانی، گرایش گیاهان دارویی، موسسه آموزش عالی بهاران، گرگان، ایرانشبنم خوشبختموسسه آموزش عالی بهاران0000-0003-2386-1690عباسعلی نوری نیامرکز تحقیقات کشاورزی و منابع طبیعی استان گلستان، گرگان، ایرانJournal Article20210607Introduction
Inefficient and excessive use of chemical fertilizers in agriculture has caused soil erosion and pollution of water resources and has also been effective in reducing the quality of crops. On the other hand, the use of beneficial soil microorganisms as bio-organic enhances soil fertility, and results in healthier and richer nutritional needs is a further harvest away from ecosystem contamination. Increase crop in terms of quantity and quality without damaging the farm ecosystem, especially medicinal plants. Bio-fertilizers are the latest development in organic farming. They are also a gift from modern agricultural science that should replace chemical fertilizers on farms which play a vital role in maintaining long-term soil fertility and stability. <em>Ocimum basilicuum</em> is a grown aromatic and medicinal plant that is a leafy vegetable of the Labiatae family. This plant has different healing properties and is also used to flavor various food products due to its special taste. Therefore, in this study with the aim of providing a practical solution to reduce the use of artificial fertilizers and environmental pollution, the effect of vermicompost and biological fertilizers on the composition of secondary metabolites and growth of basil (<em>Ocimum basilicuum</em>) was studied.
Materials and Methods
This study was conducted in 2017-2018 to investigate the effects of vermicompost and biological fertilizers on some traits of basil (<em>Ocimum basilicuum</em>) in of Azadshahr in Golestan province. In this experiment, application of vermicompost at three levels (a1: no application, a2: application at a rate of 10% and a3: application at a rate of 20% by weight of soil) and application of biological fertilizers at three levels (b1: no application, b2: use of <em>Bacillus subtillis</em>, b3: use of natural element compounds) were examined. The experiment was carried out in a randomized complete block design with three replications in the exterior space as a pot culture. The alcoholic extract used in this study was performed by soaking. The amount of total phenol compounds was measured by the Folin Siocalto method and the total flavonoid content was measured by aluminum chloride colorimetric method. Data obtained from experiments using the software SAS Ver. 9.1 and comparison of means was performed using the least significant difference test (LSD). Excel software was also used to draw the graphs.
Results and Discussion
The results of analysis of variance showed that the application of vermicompost was significant on root fresh and dry weight, fresh and dry weight of stem, stem length, fresh and dry weight of leaves and leaf area. Also, the effect of biological fertilizers on root fresh weight and stem dry weight was significant. Comparison of means also showed that vermicompost 20% compared to control and vermicompost 10% in traits such as fresh weight of root (5.14), dry weight of root (7.25), fresh weight of stem (25.23), dry weight of stem (2.25), length stem (33.77), fresh weight of leaf (51.85), dry weight of leaf (8/08) and leaf area (75.13) had the highest values. No significant effect was observed between vermicompost and biological fertilizers. The maximum amount of total phenol in vermicompost treatments belonged to 20% vermicompost at 1.98 mg/g, and in biological fertilizers treatments to Probio96 at 1.96 mg/g. Also, the maximum levels of total flavonoids in plants treated with vermicompost were 20% and Probio 96 were 92.13 mg/g and 91.22 mg/g, respectively. The results show that vermicompost had the greatest effect on target organs such as leaf area, fresh and dry weight of basil leaves.
Conclusion
The trade and cultivation of medicinal and aromatic plants is an important part of agriculture. Medicinal and aromatic plants are the main source of known medicines. Therefore, obtaining methods to increase the yield and therapeutic indicators of medicinal plants is of particular importance. In the growth of medicinal plants and biomass production, the quality of raw materials used is important. Chemical fertilizers have several adverse effects on the environment and human health. These effects can include leaching and displacement of various soil layers, groundwater and surface water pollution, accumulation of heavy metals and nitrates, air pollution, acid rain, and chemical accumulation in plants, animals, and human tissues. According to the findings, it is generally recommended to use bio-fertilizers such as vermicompost and Probiot 96 as a suitable alternative to chemical fertilizers in plant nutrition to protect the environment, human health and the positive economic effects of medicinal plantsاستفاده زیاد از کودهای شیمیایی در روشهای متداول کشاورزی سبب فرسایش خاک و آلودگی منابع آبی شده و در کاهش کیفیت محصولات نیز تاثیر دارد. کاربرد کودهای بیولوژیک در خاک و آب آلودگی ایجاد نمیکند در عین حال کیفیت مواد غذایی را افزایش میدهند. این آزمایش برای بررسی اثرات ورمیکمپوست، کودهای حاوی عناصر معدنی و باکتریهای محرک رشد گیاه (PGPR) بر روی برخی صفات گیاه ریحان <em>Ocimum basilicuum </em>L.)) در روستای قزلجه استان گلستان در سال 1397 انجام شد. بدین منظور دو عامل کاربرد ورمیکمپوست (در سه سطح a<sub>1</sub>: بدون مصرف، a<sub>2</sub>: مصرف به نسبت 10 درصد و a<sub>3</sub>: مصرف به نسبت 20 درصد وزنی خاک) و مصرف کودهای بیولوژیک و عناصر طبیعی افزایش دهنده رشد گیاه (در سه سطحb<sub>1</sub> : بدون مصرف، b<sub>2</sub>: استفاده از باکتری باسیلوس سوبتیلیس (<em>Bacillus subtillis</em>) و b<sub>3</sub>: استفاده از ترکیبات عناصر طبیعی) مورد بررسی قرار گرفتند. آزمایش بصورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی با سه تکرار در فضای آزاد به صورت کشت گلدانی اجرا شد. برای اندازهگیری صفات مورفولوژیک، مقدار فنل و فلاونوئید کل در زمان کامل شدن مرحله رویشی گیاه نمونهگیری انجام شد. مقدار ترکیبات فنل کل با استفاده از روش فولین سیوکالتو و سنجش میزان فلاونوئید کل به روش رنگ سنجی آلومینیوم کلرید اندازهگیری شد. نتایج تجزیه واریانس دادهها نشان داد، بین سطوح مختلف استفاده از ورمیکمپوست از نظر صفات وزنتر و خشک ریشه، وزنتر و خشک ساقه، طول ساقه، وزنتر و سطح برگ در سطح یک درصد و وزن خشک برگ تفاوت معنیداری در سطح پنج درصد وجود داشت. همچنین اثر کودهای بیولوژیک و عناصر طبیعی افزاینده رشد گیاه بر صفات وزنتر ریشه و وزن خشک ساقه معنیدار شد. حداکثر مقدار فنل کل بین تیمارها به ورمیکمپوست 20 درصد به میزان 98/1 میلیگرمبرگرم و کود پروبیو 96 (حاوی باکتری باسیلوس سوبتیلیس) به مقدار 96/1 میلیگرمبرگرم حاصل شد. همچنین حداکثر مقدار فلاونوئید کل در گیاهان تیمار شده با ورمیکمپوست 20 درصد و استفاده از باکتری باسیلوس سوبتیلیس (<em>Bacillus subtillis</em>) به ترتیب 13/92 میلیگرمبرگرم و 22/91 میلیگرمبرگرم به دست آمد. نتایج نشان میدهد ورمیکمپوست بیشترین تاثیر را بر اندامهای مورد هدف مانند سطح برگ، وزنتر و خشک برگ گیاه ریحان داشت. به طور کلی نتایج این آزمایش نشان داد، استفاده ورمیکمپوست 20 درصد و کود حاوی باکتری باسیلوس سوبتیلیس (<em>Bacillus subtillis</em>) مناسبترین ترکیب تغذیهای گیاه ریحان میباشد. https://jhs.um.ac.ir/article_42161_b8bf0171ff99ced938596935d58b2b08.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Evaluation of Growth, Yield and Morphological and Physiological Characteristics of Five Mint (Mentha spp.) Species in the Aeroponic System under Greenhouseارزیابی رشد، عملکرد و خصوصیات مورفولوژی و فیزیولوژی پنج گونه نعناع (Mentha spp.) در سیستم هواکشت تحت شرایط کشت گلخانهای6036184168210.22067/jhs.2022.72347.1089FAمریم یعقوب ونددانشگاه لرستانحسن مومیوندگروه علوم باغبانی
دانشکده کشارزی
دانشگاه لرستان0000-0003-2126-8092محمدرضا راجیگروه علوم باغبانی، دانشگاه لرستاناشکان بنانگروه علوم و مهندسی شیلات، دانشگاه لرستان،Journal Article20210916Introduction<br />The aeroponic system is a promising technique for the future of agriculture, growing plants in an air or mist environment without the use of soil or an aggregate medium. In aeroponic, plants are suspended in a closed or semi-closed environment by spraying the plant's dangling roots and lower stem with an atomized or sprayed, nutrient-rich water solution (30). Increased aeration of nutrient solution delivers more oxygen to plant roots in aeroponic in compare to conventional hydroponic systems, stimulating growth and helping to prevent pathogen formation (1). Cultivation of medicinal plants under controlled conditions of aeroponic and hydroponic systems commercially provides a better result in terms of quality improvement, bioactivity and biomass production (5, 4).<br />Mint (<em>Mentha</em>) is one of the most important genus of Lamiaceae family. Different species of the genus have high economic value, due to their active and aromatic substances and are used as raw materials in food, cosmetics, health, beverage and pharmaceutical industries. <em>M. piperita</em>, <em>M. spicata</em> and <em>M. suaveolens</em> are the most common and popular species of the genus for cultivation. <em>M. aquatica</em> is also a perennial plant of the genus that is cultivated in Europe, North and Northwest Africa and Southwest Asia (2). Aeroponic system is more cost effective than other systems. Because of the reduced volume of solution throughput, less water and fewer nutrients are needed in the system at any given time compared to other nutrient delivery systems. However, due to lack of research and sufficient technical information, the use of aeroponic system is not common among farmers and greenhouse owners. In addition, many tips are not yet scientifically known about the cultivation of different plant species in this system (4). Despite the benefits of aeroponics, no research has been previously conducted on the cultivation of different species of mint in this system. Therefore, the present study was conducted with the aim of investigation of growth, yield and morpho-physiological characteristics of five mint species in the aeroponic system.<br />Methods and Methods<br />This study was conducted in greenhouses of faculty of Agriculture and Natural Resources of Lorestan University in 2020. The experiment was performed as a split plot design. Mentha species (including <em>M. aquatica</em>, <em>M. pulegium</em>, <em>M. spicata</em>, <em>M. suaveolens</em> and <em>M. piperita</em>) were considered as the main plot and harvest time (first and second harvests) was used as sub-plot. In each experimental block, one row (with ten plants) of five mint species was planted. In the early stages of growth, plants were fed with half Hoagland nutrient solution and then with complete Hoagland solution. Finally, morphological and physiological traits and some biochemical characteristics of plants were measured. After harvesting the first batch of plants and in order to better evaluation of species in the aeroponics system, all studied traits were measured about two months after the first harvest. Analysis of variance was performed based on the experimental design using SAS software. The comparison of means was also done with the least significant difference (LSD) test at the level of 5%.<br />Results and Discussion<br />The results showed that <em>M. spicata</em> and <em>M. suaveolens</em> had the highest leaf to stem ratio. The highest stem dry weight and plant height were related to <em>M. pulegium</em>. While, the highest leaf area, leaf fresh and dry weight, stem fresh and dry weight, stolon fresh and dry weight, shoot fresh and dry weight, total plant dry weight and relative water content were related to <em>M. aquatic</em>, followed by <em>M. piperita</em>. In addition, <em>M. piperita</em> had shown the highest fresh root weight. The highest amount of carotenoid and chlorophyll, photosynthesis rate and CO<sub>2</sub> under the stomata was obtained in <em>M. piperita</em>. In this experiment, most of the yield-attributes traits including leaf area, leaf fresh and dry weight, root fresh weight, shoot fresh weight and total plant dry weight, as well as relative water content and photosynthesis rate were higher in the second harvest than the first one.<br />Conclusion<br />All studied species in this experiment were successfully growth in the aeroponic system. Due to high water use efficiency, no need for soil and high crop production, mint cultivation in the aeroponic system can be a healthy and profitable alternative to in soil cultivation approach. According to the results of the present study, <em>M</em><em>.</em><em> aquatica</em> has shown higher performance than other species in terms of the yield attributes traits (including leaf number, leaf area, fresh and dry weight of plant, fresh and dry weight of shoots and fresh and dry weight of leaves). Among the other species, the highest shoot dry weight and plant<em> </em>dry weight was obtained by <em>M</em><em>.</em><em> piperita</em>. Finally, the high potential of <em>M. aquatica</em> and <em>M. piperita</em> for cultivation in the aeroponic system can be concluded.<br /> امروزه استفاده از محیطهای کنترل شده و روشهای تولید بدون خاک، بهدلیل قابلیت بالای این روشها در استفاده کارآمد از منابع و قابلیتهای کشت فشرده، در حال افزایش است. به منظور بررسی ارزیابی رشد، عملکرد و خصوصیات مورفولوژی، فیزیولوژی و بیوشیمیایی پنج گونه نعناع در سیستم هواکشت، آزمایشی در شرایط گلخانه انجام شد. مطالعه ﺑﻪصورت طرح بلوکهای کامل تصادفی در سه تکرار در گلخانه داﻧﺸﻜﺪه ﻛﺸﺎورزی و منابع طبیعی دانشگاه لرستان در سال 1398 اجرا گردید و آنالیز دادهها به صورت آزﻣﺎیش فاکتوریل در ﻗﺎﻟﺐ طرح کرتهای خرد شده در زمان انجام شد. گونههای نعناع (شامل نعناع آبی <em>Mentha</em><em> </em><em>aquatica</em>، نعناع پونه <em>Mentha pulegium</em>، نعناع سبز <em>Mentha</em><em> </em><em>spicata</em><em>،</em> نعناع سیب<em>Mentha suaveolens </em><em> </em>و<em> </em>نعناع فلفلی <em>Mentha</em><em> </em><em>piperita</em>) بهعنوان فاکتور اصلی و برداشت (چین اول و چین دوم) بهعنوان فاکتور فرعی در نظر گرفته شدند. نتایج نشان داد که گونههای نعناع سیب و نعناع سبز بیشترین نسبت برگ به ساقه را به ترتیب به میزان 368/1 و 364/1 داشتند. بیشترین سطح برگ، وزن تر و خشک برگ، وزن تر و خشک ساقه، وزن تر و خشک استولون، وزن تر و خشک اندام هوایی، وزن خشک کل بوته و محتوای نسبی آب مربوط به گونه نعناع آبی و پس از آن گونه نعناع فلفلی بود. علاوه بر این گونه نعناع فلفلی بیشترین وزن تر ریشه را دارا بود. بیشترین میزان کاروتنوئید و کلروفیل در گونه نعناع فلفلی به دست آمد و بیشترین میزان فتوسنتز و دیاکسیدکربن زیر روزنه نیز مربوط به گونه نعناع پونه بود. در این آزمایش اغلب صفات مرتبط با عملکرد شامل سطح برگ، وزن تر و خشک برگ، وزن تر ریشه، وزن تر اندام هوایی، وزن خشک کل بوته، محتوای نسبی آب و فتوسنتز در چین دوم بالاتر بودند. با توجه به نتایج بهدست آمده در مجموع گونه نعناع آبی نسبت به دیگر گونهها از لحاظ اغلب صفات مورد مطالعه برتری نشان داد. در حالیکه گونه نعناع فلفلی نیز از رشد و عملکرد قابل توجهی برخوردار بود. بنابراین کشت گونه نعناع فلفلی جهت مصارف دارویی و کشت گونه نعناع آبی جهت مصرف تازهخوری در سیستم هواکشت مناسب است.https://jhs.um.ac.ir/article_41682_2896e5484b0c887cb351a4a9ed0082de.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Effect of Cinnamic Acid on Morphophysiological Characteristics of Cucumber Seedling under Chilling Stressاثر سینامیک اسید بر خصوصیات مورفوفیزیولوژیکی نشاء خیار تحت تنش سرما6196304159310.22067/jhs.2022.72749.1093FAزهرا دارابیگروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ایلامفردین قنبریگروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایرانجواد عرفانی مقدمگروه علوم باغبانی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایرانJournal Article20211008Introduction
<strong> </strong>Low temperature is one of the most important environmental stresses that cause damage to plants and limit the geographical distribution of plant species. Plants of tropical and sub-tropical origin, such as cucumbers, are sensitive to cold stress and severely damaged at low temperatures. Plants have evolved a set of defense mechanisms to adapt to low temperatures. These mechanisms include the regulation of gene expression and physiological and biochemical changes that increase plant resistance to chilling stress. Cinnamic acid (CA) is one of the most important phenolic acids present in all plants and has antimicrobial properties against fungi and bacteria. The application of this compound in some plants causes oxidative stress and leads to the activation of antioxidant enzymes. Therefore, in the present study, the effects of exogenous cinnamic acid treatment on cold stress tolerance in cucumber seedlings have been investigated.
Materials and Methods
This research was conducted in the greenhouse and laboratory of the Department of Horticultural Sciences of Ilam University in 2019. Cucumber seeds (Super Daminus cultivar) were planted in a 1: 1: 1 ratio of field soil, manure, and sand. In the fully developed two-leaf stage, seedlings produced were sprayed using cinnamic acid (at concentrations of 0, 50, 100, and 200 μM). Foliar spraying treatments were applied at the mentioned concentrations until the surface of the leaves was completely wet. 24 hours after foliar application, all plants were exposed to cold stress at 3 ° C for 6 hours in six consecutive days. After applying the cold treatment, the seedlings were transferred to the greenhouse and 72 hours later, the traits were measured.
Results and Discussion
The results showed that exogenous CA application increased the growth characteristics of cucumber seedlings subjected to chilling stress. Improving the growth and development of plants under stress conditions by cinnamic acid treatment has been reported in other studies, which is consistent with the results of the present study. It has been reported that cinnamic acid treatment, by causing oxidative shock in plants, leads to plant defensive responses to stress conditions, and through this, plants can better withstand stress conditions. These defense responses include increasing compatible solutions and improving the antioxidant system. In the present study, the use of cinnamic acid treatment increased proline, chlorophyll, and total phenol and reduced of membrane lipid peroxidation, and these changes led to a decrease in the apparent effects of cold on cucumber seedlings.
The use of chemicals that can mitigate the effects of cold on the plant can also help maintain plant growth under cold stress. In the present study, the application of cinnamic acid improved the growth of cucumber seedlings under cold stress conditions. Cinnamic acid pretreatment by inducing antioxidant compounds reduced the effects of cold on cucumber seedlings and improved plant growth in chilling conditions. Also, cinnamic acid treatment increased the growth of pepper plants under salinity stress, cucumber under drought stress, and wheat under drought conditions, which is consistent with the results of the present study. Therefore, it can be said that cinnamic acid improves plant growth under stress by changing physiological and biochemical processes. The results showed that the application of cinnamic acid improved the growth of cucumber seedlings under chilling stress conditions. Cinnamic acid pretreatment caused a significant increase in relative water content (25 to 32%), chlorophyll (108 to 125%), proline (152 to 244%), and total phenol (31%) compared to the control, therefore improving the adaptabilities of cucumber seedlings to chilling stress. The application of cinnamic acid also reduced the damage to cell membranes. The electrolyte leakage and malondialdehyde accumulation of cinnamic acid-treated seedlings were lower than that of control seedlings.
Conclusion
In general, the results of this study showed that the application of cinnamic acid reduced the effects of cold stress on cucumber seedlings. These results were associated with increased proline, chlorophyll, phenol and relative water content, in this way, the rate of ion leakage and accumulation of malondialdehyde in cucumber seedlings were reduced under cold stress. In general, the results showed that cinnamic acid treatment (especially concentration of 200 μM) can effectively reduce the effects of chilling on cucumber seedlings and improve their growth under cold stress.یکی از مشکلات اصلی گیاهان گرمسیری مانند خیار (<em>Cucumis sativus</em> L.) حساسیت به دمای پائین است که منجر به ایجاد آسیب سرمازدگی در آنها میشود. سینامیک اسید یک اسید فنلی است و کاربرد خارجی آن سبب بهبود سیستم آنتی اکسیدانی شده و تحمل شرایط تنش را در گیاه بالا میبرد. در تحقیق حاضر اثرات کاربرد سینامیک اسید بر تحمل تنش سرمایی نشاء خیار بررسی شده است. آزمایش به صورت طرح کاملاً تصادفی با سه تکرار در سال 1398 در دانشگاه ایلام انجام شد. نشاءهای خیار در مرحله دو برگی با غلظتهای مختلف سینامیک اسید (صفر، 50، 100 و 200 میکرومولار) محلولپاشی شده و سپس در معرض تنش سرما (3 درجه سانتیگراد به مدت شش ساعت در شش روز متوالی) قرار گرفتند. نتایج نشان داد که اثر تیمار سینامیک اسید بر وزنتر و خشک شاخساره و ریشه، محتوای رطوبت نسبی، نشت یونی، مالون دی آلدهید، فنل کل، پرولین، کلروفیل و شاخص سرمازدگی معنیدار شد. کاربرد سینامیک اسید سبب بهبود پارامترهای رشدی نشاءهای خیار در شرایط تنش سرمایی شد. پیشتیمار سینامیک اسید سبب افزایش معنیدار محتوای رطوبت نسبی (25 تا 32 درصد افزایش)، کلروفیل (108 تا 125 درصد افزایش)، پرولین (152 تا 244 درصد افزایش) و فنل کل (31 درصد افزایش) نسبت به شاهد شده و از این طریق خسارت سرما به نشاء خیار را کاهش داد. همچنین استفاده از سینامیک اسید خسارت به غشاءهای سلولی را کاهش داده و نشاءهای تیمار شده با سینامیک اسید نشت یونی و تجمع مالون دی آلدهید کمتری (9 تا 52 درصد کاهش) نسبت به شاهد داشتند. به طور کلی نتایج نشان داد که تیمار 200 میکرومولار سینامیک اسید به طور مؤثری میتواند آثار سرما بر نشاء خیار نسبت به شاهد را کاهش داده و سبب بهبود رشد آن در شرایط تنش سرما شود.https://jhs.um.ac.ir/article_41593_ff56f40c9595e42fd8b4c42c14f7b90c.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Study of Genetic Variation and Heritability of some Flower Traits in different Chrysanthemum (Chrysanthemum morifolium) Genotypesبررسی تنوع ژنتیکی و وراثتپذیری برخی ویژگیهای گل در ژنوتیپهای مختلف داوودی (Chrysanthemum morifolium)6316424146210.22067/jhs.2021.72920.1094FAبهروز مرادی عاشوربخش تحقیقات علوم زراعی-باغی، مرکز تحقیقات، آموزش کشاورزی و منابع طبیعی استان همدان، سازمان تحقیقات، آموزش و ترویج کشاورزی، همدان، ایرانخسرو پرویزیبخش تحقیقات علوم زراعی-باغی، مرکز تحقیقات، آموزش کشاورزی و منابع طبیعی استان همدان، سازمان تحقیقات، آموزش و ترویج کشاورزی، همدان، ایرانمحمد حسین عظیمیپژوهشکده گل و گیاهان زینتی، سازمان تحقیقات، آموزش و ترویج کشاورزی، محلات، ایرانJournal Article20211017Introduction
<strong> </strong>The evaluation of morphological, phenological and agronomical characteristics is one of the first steps for the initial study of germplasm. It can also be conferred as basic information for the breeder to study genetic diversity for particular purposes. Chrysanthemum (<em>Chrysanthemum morifolium</em>) is a perennial herbaceous plant of the family <em>Asteraceae</em> with simple coniferous leaves and alternate arrangement on its branched stems and has composite flowers. The first stage in breeding programs is to study genetic variation of the selected plants. This study was conducted in order to evaluate the genetic variation of flower traits for selected Chrysanthemum genotypes for three years. Researchers use different methods to estimate genetic diversity of plants including DNA markers, isozymes and morphological traits. Use of morphological traits that are easily measured and have high heritability is a convenient tool to assess the level of genetic diversity of plants.
Materials and Methods
<strong> </strong>The origin of the tested genotypes was from the gene bank of the Research Institute of Flowers and Ornamental Plants. The results of random crosses between different chrysanthemum clones were evaluated. The research was conducted for four consecutive years. The aim of the first year experiment was positive selection of genotypes. In fact, the best genotypes were selected. In addition, negative selection of different genotypes was performed. During this selection period, similar genotypes were removed. Selected genotypes (20 genotypes) were evaluated based on a completely randomized design with three replications using seven morphological traits including number of flower per plant, period of flowering, flower diameter, number of petal row, petal length, Fresh weight and dry weight of flower. Statistical analyses including analysis of variance, correlation coefficient, and heritability, phenotypic and genotypic coefficient of variation were estimated using SAS 9.0 software.
Results and Discussion
<strong> </strong>After performing Bartlett test and confirming the uniformity of variances, combined analysis was performed for three years. The results of analysis of variance showed that the effect of the year was significant only for the number of flowers per plant and the flowering period. The results of three-year analysis of variance showed that there was significant difference among the genotypes for the number of flowers per plant, flowering period, number of petal rows, fresh and dry flower weight. There was a significant difference (p≤0.05) among the years only in flowering period and number of flowers per plant. The highest variation observed between flowering period and flower diameter. The highest coefficient of phenotypic and genetic variation obtained for the number of petal rows, flower fresh weight and petal length. The lowest coefficient of phenotypic and genetic variation obtained for fresh and dry flower weight and number of flowers per plant. The highest positive genetic and phenotypic correlation coefficient estimated between flowering period with flower diameter, number of rows of petals and fresh weight of flowers which is important for the simultaneous breeding of these traits. The results of this study showed that flower diameter, flowering period, petal length and number of petal rows showed high general heritability. Therefore these results indicate that the selection process for these traits is effective and can be used in the breeding programs. The results of this study showed that highest number of petal rows belonged to B136 genotype. Genotype 31 with forty-three days of flowering period had the highest flowering length compared to other genotypes. GenotypeC85 had 202 flowers per plant. These genotypes can be used as parents especially to increase the flowering period and the number of petal rows due to the general heritability of over fifty percent of these traits. It is also suggested that traits such as petal color and resistance to important pests (including black chrysanthemum aphid, flower thrips pest) and important diseases (including Fusarium wilt, verticillium wilt and leaf spot) should be studied. The superior genotype can be selected if statistically significant difference observed among of genotypes.
Conclusion
It is a fact that chrysanthemums has characteristics such as variation of flower shape and color, plant size, form and flowering period that is widely used in landscape. In this research significant difference observed among the genotypes. Also some of measured traits had a high general heritability due to the positive and significant correlation of these traits that can be used to improve other genotypes and their traits.اولین مرحله در هر برنامه اصلاحی، اطلاع از میزان تنوع موجود در مواد گیاهی است که برنامه بهنژادی بر روی آن انجام میشود. این آزمایش به منظور بررسی تنوع ژنتیکی برخی خصوصیات مورفولژیکی گل در ژنوتیپهای انتخابی گل داوودی ( <em>Chrysanthemum morifolium</em>) طی مدت سه سال در قالب طرح بلوکهای کامل تصادفی انجام شد. نتایج تجزیه واریانس در طی سه سال نشان داد که بین ژنوتیپها برای صفات تعداد گل در بوته، طول دوره گلدهی، تعداد ردیف گلبرگ و وزن ترگل تفاوت معنیدار آماری وجود داشت. بین سالهای آزمایش نیز تنها برای صفات طول دوره گلدهی و تعداد گل در بوته تفاوت معنیدار آماری وجود داشت. بیشترین تنوع نیز بین صفات طول دوره گلدهی و قطر گل مشاهده گردید. بیشترین ضریب تغییرات فنوتیپی و ژنتیکی برای صفات تعداد ردیف گلبرگ، وزن تر گل و طول گلبرگ به دست آمد و کمترین ضریب تغییرات فنوتیپی و ژنتیکی برای صفت وزن تر و خشک گل و نیز تعداد گل در بوته بدست آمد. بیشترین ضرایب همبستگی ژنتیکی و فنوتیپی مثبت بین طول دوره گلدهی با قطر گل، تعداد ردیف گلبرگ و وزن تر گل برآورد گردید که جهت اصلاح همزمان این صفات حائز اهمیت خواهد بود. نتایج این مطالعه نشان داد که صفات قطرگل، طول دوره گلدهی، طول گلبرگ و تعداد ردیف گلبرگ دارای وراثتپذیری عمومی بالایی بودند که این امر نشاندهنده ایناست که عمل گزینش برای این صفات موثر بوده و میتوان از این صفات در برنامههای اصلاحی استفاده نمود. بیشترین تعداد ردیف گلبرگ مربوط به ژنوتیپ B136 بود. ژنوتیپ 31 نیز با چهل و سه روز طول دوره گلدهی بالاترین طول گلدهی را نسبت به سایر ژنوتیپهای بررسی شده در سال سوم به خود اختصاص داد. ژنوتیپ C85 با تعداد 202 گل بیشترین در هر بوته را دارا بود. که میتوان از این ژنوتیپها به عنوان والد، بخصوص جهت افزایش طول دوره گلدهی و افزایش تعداد ردیف گلبرگ سایر ارقام، با توجه به وراثتپذیری عمومی بالای پنجاه درصد این صفات استفاده نمود.https://jhs.um.ac.ir/article_41462_21be4f704da71499b4c5728adbb08787.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Effect of Salicylic acid Application on Morphophysiological Traits of Physalis peruviana L. under Deficit Water Stressاثر کاربرد سالیسیلیک اسید بر صفات مورفوفیزیولوژیکی عروسک پشت پرده (Physalis peruviana L.) تحت تنش کم آبی6436554168110.22067/jhs.2022.72985.1096FAسارا سیاه منصورگروه باغبانی، دانشکده کشاورزی، دانشگاه لرستانعبداله احتشام نیافیزیولوژی و اصلاح میوه، علوم باغبانی، دانشکده کشاورزی، دانشگاه لرستان0000-0002-7291-9572عبدالحسین رضایی نژادفیزیولوژی گیاهان زینتی، علوم باغبانی، دانشکده کشاورزی، دانشگاه لرستان0000-0002-5428-3697Journal Article20211017Introduction
<strong> Reduction of water available</strong> to the plant leads to many morphological, physiological and biochemical changes in plant cell and plant organs activity will be directly disrupted. In addition to the defense systems in the plant itself, there are other ways to increase plant resistance, including the use of plant growth regulators. Salicylic acid is known as one of the common compounds used for environmental stresses and an essential molecular signal in plant fluctuations in response to environmental stresses. This substance has a protective effect and improves the growth process of the plant. This combination stimulates the plant immune system by inducing transcription of a specific group of genes involved in the defense and development of systemic resistance. Physalis is a small fruit of the Solanaceae family that originates in tropical and subtropical regions of South America. This genus has 80 species in the world, of which the famous species <em>Ph. minima</em> L., <em>Ph. angulate</em> L.,<em> </em><em>Ph. philadelphia</em> L., <em>Ph. alkekengi</em> L., <em>Ph. peruviana</em> L., <em>Ph. pubscens</em> L., <em>Ph. ixocarpa</em> L., among these species, <em>Peruviana</em> species is considered due to its unique taste and high yield.
Material and<strong> </strong>Methods
An experiment was conducted at the Faculty of Agriculture research greenhouse of Lorestan University Khorramabad, Iran. (latitude 33◦ 29` N, longitude 48◦ 22` E, altitude 1125 m) in May 2018. The experimental design was factorial based on completely randomized design with three replications. The treatments consisted of 3 levels of deficit water stress (95, 85, and 75% field capacity) and four salicylic acid concentrations (0, 0.5, 1, and 2 mM). Physalis seedlings were grown into pots containing soil, sand, and manure. In this research, chlorophyll (Chl a, Chl b, total Chl) and carotenoid content, chlorophyll fluorescent parameters (F0, Fm, Fv, and Fv/Fm), fresh and dry weight of fruit, fruit diameter, fruit number, TSS and vitamin C, proline, leaf anthocyanin and shoot soluble sugar, fresh and dry weight of leaf, leaf area, root volume and plant height, were measured.
Results and<strong> </strong>Discussion
<strong>The results showed that the effect of deficit water stress and salicylic acid treatment on the measured traits including photosynthetic pigments, chlorophyll fluorescence, fresh, and dry weight of fruit, number of fruits, amount of vitamin C, proline, soluble sugar, fresh and dry weight of leaves, leaf area, plant height and root volume were significant.</strong><strong> </strong><strong>Foliar application of salicylic acid at a concentration of 2 mM under water stress under 75% of field capacity increases the concentration of photosynthetic pigments including chlorophyll a (25.69%), chlorophyll b (14.08%), total chlorophyll (6.70%), and carotenoid (7.26%) and increased chlorophyll fluorescence parameters including Fm (5.2%) and Fv (1.92%)</strong>. Salicylic acid at a concentration of 1 mM had better results on quantitative and qualitative traits of fruit including a number of fruits (2.67%), fresh weight of fruit (10.61%), and dry weight of fruit (0.6%). Under stress conditions of 75% of field capacity, application of 2 mM salicylic acid reduced the concentration of proline (31.2%), soluble sugar (11.69%) and leaf anthocyanin (4.93%). Therefore, according to the results, the best levels of irrigation for breeding Physalis (<em>Physalis pruviana</em> L.) are 85 and 95% of field capacity, and the concentration of 2 mM salicylic acid as a natural modulator has an effective role in reducing the effects of dehydration stress. Stress significantly reduces the maximum efficiency of photosystem II (Fv/Fm). This adverse effect on Fv/Fm may be due to its role in inhibiting electron transfer, as well as destroying the reaction centers in PSII. Accumulation of proline under stress is because proline, as a compatible osmolyte, removes all types of active oxygen and protects the cell, and provides the necessary conditions for the plant to absorb water. Salicylic acid increases the chlorophyll synthesis and protects the chloroplast membrane from stress by removing destructive free radicals by stimulating the biosynthetic of the photosynthetic pigment pathway and reducing the chlorophyllas enzyme. It also prevents the ethylene formation by inhibiting of ACC- synthetase enzyme, which in turn prevents the degradation of chlorophyll. Salicylic acid regulates the various physiological processes such as plant growth and development.
Conclusion
According to the results, the application of salicylic acid under low irrigation stress, as a growth enhancer and stress modulator, showed good results and improved physiological traits such as increasing photosynthetic pigments (chlorophyll and carotenoids), Fm, Fv and maximum efficiency of photosystem II and improvement of biochemical traits (proline, soluble sugar and leaf anthocyanin) at a concentration of 2 mM and increase in fruit traits (fresh and dry weight, number of fruits, vitamin C and fruit diameter) at a concentration of 1 mM. Growth and morphological traits also showed an increase in fresh and dry leaf weight, leaf area, plant height at a concentration of 2 mM salicylic acid at low irrigation stress levels. Therefore, salicylic acid can be used to reduce the destructive effects of deficit water stress and increase the quantity and quality of fruit if the Physalis plant is grown in arid and semi-arid regions.امروزه به دلیل تغییرات آب و هوا و کاهش بارندگی، تولید محصولات کشاورزی در بسیاری از مناطق، بخصوص مناطق خشک و نیمه خشک با مشکل مواجه شده است. از طرفی، استفاده از مواد تعدیل کننده تنش، یک راهکار بهینه و کم هزینه بوده و شناخت ویژگیهای گیاه در این شرایط، منجر به اتخاذ شیوههای مدیریت تولید مناسب خواهد شد. به همین منظور، آزمایشی به صورت فاکتوریل در قالب طرح کاملاً تصادفی با دو فاکتور تنش کم آبی (سه سطح 95، 85 و 75 درصد ظرفیت زراعی) و محلولپاشی سالیسیلیک اسید ( چهار سطح صفر، 5/0، 1 و 2 میلیمولار) در سال 1397 درگلخانه تحقیقاتی دانشگاه لرستان انجام شد. نتایج نشان داد که اثر تنش کم آبی و تیمار سالیسیلیک اسید بر صفات اندازهگیری شده شامل رنگیزههای فتوسنتزی، کلروفیل فلورسانس، وزن تر و خشک میوه، تعداد میوه، میزان ویتامین ث، پرولین، قند محلول، وزن تر و خشک برگ، سطح برگ، ارتفاع بوته و حجم ریشه معنیدار شد. محلولپاشی سالیسیلیک اسید با غلظت 2 میلیمولار در تنش کم آبی 75 درصد ظرفیت زراعی، موجب افزایش غلظت رنگدانههای فتوسنتزی شامل کلروفیل a (69/25 درصد)، کلروفیل b (08/14 درصد)، کلروفیل کل (70/6 درصد) و کارتنوئید (26/7 درصد) و افزایش میزان پارامترهای کلروفیل فلورسانس از جمله Fm (2/5 درصد) و Fv (92/1 درصد) نسبت به شاهد شد و در غلظت 1 میلیمولار بر صفات کمی و کیفی میوه از جمله تعداد میوه (67/2 درصد)، وزن تر میوه (61/10 درصد) و وزن خشک میوه (6/0 درصد)، نتایج مطلوبتری را نسبت به شاهد داشت. همچنین، در شرایط تنش 75 درصد ظرفیت زراعی، کاربرد سالیسیلیک اسید 2 میلیمولار موجب کاهش غلظت پرولین (2/31 درصد)، قند محلول (69/11درصد) و آنتوسیانین برگ (93/4 درصد) نسبت به شاهد شد. بنابراین طبق نتایج به دست آمده، میتوان از سطوح آبیاری 85 و 95 درصد ظرفیت زراعی، جهت پرورش گیاه عروسک پشت پرده و غلظت 2 میلیمولار سالیسیلیک اسید به عنوان یک تعدیل کننده طبیعی برای کاهش اثرات تنش کم آبی استفاده کرد.https://jhs.um.ac.ir/article_41681_15ee53928aa8287c9907006859cc3059.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Evaluation of Changes in Alkaloid Content and some Physiological Traits of Datura stramonium L. under the Influence of Planting Date and Plant Density Levelsبررسی تغییرات محتوای آلکالوئیدها و برخی صفات فیزیولوژیک گیاه دارویی تاتوره (Datura stramonium L.) تحت تاثیر تاریخ کاشت و سطوح تراکم بوته6576694155510.22067/jhs.2021.72958.1095FAزهرا ایزدیدانشکده کشاورزی. دانشگاه گنبد کاووسعباس بیابانیگروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووسحسین صبوریگروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووسبابک بحرینی نژادمرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهانعبدلطیف قلی زادهگروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووسJournal Article20211105Introduction
<em>Datura</em> <em>stramonium</em> L. is one of the medicinal plants that have a special role in the pharmaceutical industry due to its alkaloid compounds. <em>Datura</em> is one of the most important medicinal species that is a rich source of alkaloid compounds. Important phytochemical compounds in Datura, especially alkaloids, have been considered by the pharmaceutical industry. Datura <em>(Datura stramonium</em> L.) is an annual plant of the Solanaceae family, which is native to North America and is found in abundance in the coastal areas of northern Iran from Astara to eastern Mazandaran. Important phytochemical compounds in tattoos, especially alkaloids, have been considered by the pharmaceutical industry. Tropane alkaloids are one of the most important compounds in plants of the Solanaceae family and the anticholinergic effects of these compounds have made their use common in medicine. Important tropane alkaloids include hyoscyamine, ascopolamine, and atropine in <em>D. stramonium</em>. Plant growth is a set of specific biochemical and physiological processes that interact with each other and are affected by environmental factors such as temperature, light intensity, etc. that are affected by the date of planting. In the meantime, analyzing the amounts of photosynthetic pigments is a way to justify and interpret the plant's reactions to different environmental conditions during the growing period, through which it is possible to transfer and accumulate photosynthetic products. Due to the importance of <em>D. stramonium</em> and its widespread use in the pharmaceutical industry, Since Datura plant has not been adequately studied in the literature, the purpose of investigating three different planting date and planting density levels in this plant is to determine their proper values which increase the alkaloids and photosynthetic pigments, resulting in grain growth and yield increment.
Materials and Methods
This research during two consecutive years (1397-1397 and 1397-1398) in Shahid Fozveh research station affiliated to Isfahan Agricultural Research and Training Center and Natural Resources located 25 km west of Isfahan (Latitude: 32°36′37″ N, Longitude: 51°26′52″ E . 1612 m above sea level), which according to the Gauchen division has a mild semi-desert climate. The experiment was performed as a factorial experiment in the form of randomized complete blocks with three replications. Treatments included three densities (6, 10 and 14) plants per square meter and planting date in autumn and spring. Autumn planting of <em>D. stramonium</em> for the first year of the experiment was done on 3 January and in the second year on 30 December. In the spring planting of <em>D. stramonium</em>, due to the long growing season, in order to be productive during the growing season, first the seed of the plant was planted in the planting trays and then in the 3 to 4 leaf stage the seedlings were transferred to the main land. In both years of testing, the seeds were sown on the date of spring planting in March. Field operations including plowing, disc, leveling, preparation and preparation of atmosphere and ridges were carried out in the field. According to different fertilizer levels and density levels, each replication included 9 experimental plots. The length of each plot was 5 m and its width was 3 m, which included 5 rows with a distance of 60 cm. The distances of the plants on the ridge were considered as 15, 20 and 33 cm 33, respectively, according to the densities (6, 10 and 14 plants per square meter). The distance between the replicates was 1 m and the distance between the plots from each other was considered a planting line. The data were analyzed using SAS software version 9.4. The means were compared with LSD test at 5% level and graphs were drawn using EXCEL software version 2010.
Conclusion
According to the results, the density of 6 plants per hectare on the date of autumn planting improved seed yield and increased hyoscyamine and alkaloids. In fact, the density of 6 plants per square meter in this study increased grain yield and the amount of hyoscyamine and ascopolamine. At low plant densities in this study, including densities of 6 and 10 plants per square meter, the amount of photosynthetic pigments increased. Also, maintaining the amount of chlorophyll in young leaves causes a delay in the aging process and increases the durability of the leaf surface, which will have a significant effect on the transfer of photosynthetic material to the seed. More and slower nourishing material is transferred to the grain, so the grain filling period will be longer. The results show that by selecting proper levels of plant density and planting date as two of the most important crop management practices, the number of tropane alkaloids in Datura as one of the important active ingredients in the pharmaceutical industry increases.گیاه تاتوره (<em>Datura stramonium </em>L.) به لحاظ دارا بودن ترکیبات آلکالوئیدی جایگاه ویژهای در صنایع دارویی دارد. ترکیبات فیتوشیمیایی مهم موجود در تاتوره بهویژه آسکوپولامین و هیوسیامین آن را برای صنایع داروسازی مورد توجه قرار داده است. بهمنظور بررسی سه سطح تراکم کاشت (6، 10 و 14 بوته در متر مربع) در دو تاریخ (کاشت پاییزه و بهاره) بر رنگدانههای فتوسنتزی، آلکالوئیدها و عملکرد دانه تاتوره، آزمایشی به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی با سه تکرار در شرایط مزرعهای طی سالهای زراعی 1397 و 1398 در ایستگاه تحقیقاتی شهید فزوه، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی اصفهان به اجرا درآمد. بر اساس نتایج بدست آمده تاریخ کاشت بر میزان آسکوپولامین و هیوسیامین تاتوره و عملکرد دانه اثر معنیداری در سطح یک درصد داشت اما بر رنگدانههای فتوسنتزی شامل کلروفیل a و b اثر معنیداری نداشت. همچنین تاریخ کاشت بهاره نیز سبب کاهش صفات مورد بررسی گردید. در واقع تراکم 6 بوته در متر مربع سبب افزایش عملکرد دانه و مقدار هیوسیامین و آسکوپولامین گردید، این در حالی است که، بیشترین مقدار کاروتنوئیدها 462/0 میلیگرم بر گرم وزن تازه برگ در تیمار 14 بوته در متر مربع مشاهده گردید. در تراکمهای 6 و 10 بوته در متر مربع مقدار رنگدانههای فتوسنتزی شامل کلروفیل a و کلروفیل b افزایش یافت. همچنین تراکم بوته در تمامی صفات فوق اثر معنیداری داشت، بطوریکه بیشترین مقدار آسکوپولامین در تیمار 6 بوته در متر مربع (71/3 میلیگرم بر گرم وزن دانه) بدست آمد. در تاریخ کاشت پاییزه عملکرد دانه در تیمار تراکم 6 بوته با 72/1174 کیلوگرم در هکتار بدست آمد. بر اساس نتایج بدست آمده تراکم 6 بوته در هکتار در تاریخ کاشت پاییزه سبب بهبود عملکرد دانه و افزایش هیوسیامین و آلکالوئید گردید.https://jhs.um.ac.ir/article_41555_5fe938b6bbb43fe4a776ad3f64256e52.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Response of some Vegetative, Qualitative and Quantitative Traits of Grape Vine (Vitis vinifera L. Cv. Rishbaba) to Type of Color and Percentage of Shading in Netting Systemتاثیر نوع رنگ و درصد سایهدهی سایبان بر برخی از ویژگیهای رویشی، کمی و کیفی انگور رقم ’ریشبابا‘6716824146510.22067/jhs.2021.73470.1105FAلیلا جعفری بورکیگروه علوم باغبانی، واحد شیراز. دانشگاه ازاد اسلامی، شیراز. ایران.بیژن کاووسیبخش تحقیقات زراعی و باغی، مرکز تحقیقات کشاورزی و آموزش و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، شیراز، ایرانحمید زارعبخش تحقیقات زراعی و باغی، مرکز تحقیقات کشاورزی و آموزش و منابع طبیعی استان فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی، شیراز، ایران.Journal Article20211108Introduction
Table grape is one of the most important horticultural crops in Fars province however in recent years climate change has caused negative effects on phenology and reduced the quantity and quality of its product. Around the world, shade net is used for a different of crops, from fruits and vegetables to nursery plants to protect against strong sunlight, wind, hail and bird injury. Shade net are commonly used in vineyards for early, late harvest, protection from hail, snow, storms, and the prevention of the negative effects of pests and diseases in many countries such as Japan, Thailand, Australia, Chile, the United States and Turkey. This study was conducted to investigate the effect of color type and shading percentage on some characteristics of grapes of Rishbaba cultivar in one of the vineyards of Kavar city in 2019.
Materials and Methods
The experiment was performed as a factorial experiment based on randomized complete block design with 3 replications with canopy color factors (green, red and white) and shading percentage (30% and 50%) and without canopy (control). Kavar city is located 45 km southeast of the center of the province and has a longitude of 25<sup>0</sup> and 42 and a latitude of 29<sup>0</sup> and 11 ". The altitude is 1510 meters above sea level and the average rainfall is 290 mm, the average annual temperature is 22, the maximum temperature is 44 and the minimum temperature is minus 4 degrees Celsius. In this study, some characteristics of vegetative and biochemical traits such as shoot length, number of nodes, internode distance, leaf area and chlorophyll, some environmental indicators (leaf temperature, light intensity and some characteristics of quantitative traits berry and cluster weight and some qualitative traits Similar soluble solids, taste index and vitamin C were examined.
Results and Discussion
The results showed that green cover with 50% shading had the highest vegetative growth in terms of shoot length (20.87 cm), internode distance (3.80 cm) and leaf area (188.33 cm<sup>2</sup>) and the lowest shoot length (42 cm) and (48.25 cm2), internode distance (2.97 and 2.58 cm) and leaf area (133.07 and 139.68 cm<sup>2</sup>) were related to control and white canopy treatments, respectively. Shade net with red color has the highest number of nods (22.77) and with 50% shading the highest amount of total chlorophyll (30.47 mg / g fresh weight), cluster weight (691.67 g) and vitamin C (4.10 mg per 100 ml juice). The white color of the shade caused the highest leaf temperature (29.17 ° C) and light intensity (538.67 watts per square meter). In general, shading reduced the temperature of grape leaves and increasing the percentage of shade had a decreasing effect on light intensity. The shade net also reduces the amount of sunlight reaching the trees and lowers the level of evapotranspiration, which reduces the symptoms of plant water stress and thus increases photosynthesis, plant yield and fruit size.
Conclusion
Among the different net colors, the highest leaf temperature (29.17 ° C) was related to white color and the lowest (26.92 °C) was related to red and green colors. Among the different colors of the nets, white color had the highest intensity of light (538.67 watts per square meter) and the lowest intensity of light (540.67 watts per square meter) related to green color. The white color of the shade net had an increasing effect on the taste index and the green color had a decreasing effect compared to other colors. Uncoated vines (control) had the highest amount of soluble solids, while green cover with 50% shading had the lowest amount of soluble solids. According to the results of this study, the red canopy had an increasing role in increasing the quantity and quality of bearded grapes, the green canopy caused vegetative growth and the increase in vegetative growth with the percentage of shade had a direct effect. The shade net protected the vines and the crop from sunlight and prevented sunburn. The green canopy with 50% shading had the most positive effect. All treatments had a positive effect on the vegetative growth of vines and among them, green canopy with 50% shading had the greatest effect. All treatments had a positive effect on crop uniformity in terms of size and color and red canopy with 50% shading had the most positive effect on quantity and quality of Rishbaba grapes compared to other treatments.انگور یکی از مهمترین محصولات باغی در استان فارس بوده که به صورت دیم و آبی تحت کشت میباشد. شواهد نشان میدهد که در سالهای اخیر تغییر اقلیم و گرم شدن جهانی موجب اثرات منفی بر برخی ویژگیهای فنولوژی، کمیت و کیفیت محصول شده است. یکی از راهکارهای کاهش خسارت تغییر اقلیم همچون آفتابسوختگی برگ و میوه، استفاده از پوشش سایبان میباشد. در این راستا، پژوهش حاضر به منظور بررسی اثر نوع رنگ (سبز، قرمز و سفید) و درصد سایهدهی سایبان (30 و 50 درصد) بر برخی ویژگیهای انگور رقم ’ریشبابا‘، به صورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی در سه تکرار در یکی از تاکستانهای شهرستان کوار در سال 1398 اجرا گردید. نتایج نشان داد که پوشش رنگ سبز با سایهدهی 50درصد بیشترین رشد رویشی را از نظر طول شاخه (87/20 سانتیمتر)، فاصله میانگره (80/3 سانتیمتر) و سطح برگ (33/188 سانتیمتر مربع) داشته و کمترین میزان طول شاخه (42 و 25/48 سانتیمتر مربع)، فاصله میانگره (97/2 و 58/2 سانتیمتر مربع) و سطح برگ (07/133 و 68/139 سانتیمتر مربع) به ترتیب مربوط به تیمار شاهد و سایبان رنگ سفید بود. سایبان با رنگ قرمز بیشترین تعداد گره (77/22) و با سایهدهی 50 درصد بیشترین میزان کلروفیل کل (47/30 میلیگرم به گرم وزن تر)، وزن خوشه (67/691 گرم) و ویتامین ث (10/4 میلیگرم در 100 میلیلیتر آب میوه) را نشان داد. رنگ سفید سایبان باعث بیشترین میزان دمای برگ (17/29 درجه سانتیگراد) و شدت نور (67/583 وات بر متر مربع) گردید. در مجموع سایهدهی باعث کاهش دمای برگ انگور گردید و افزایش درصد سایه بر میزان شدت نور اثر کاهشی داشت. رنگ سفید سایبان نسبت به سایر رنگها بر شاخص طعم اثر افزایشی و رنگ سبز اثر کاهشی داشت. تاکهای بدون پوشش (شاهد) دارای بیشترین میزان مواد جامد محلول بودند، درصورتی که سایبان رنگ سبز با سایهدهی 50 درصد دارای کمترین میزان مواد جامد محلول بود. بر اساس نتایج این پژوهش سایبان رنگ قرمز در کمیت و کیفیت انگور ’ریشبابا‘ نقش افزایشی داشت، سایبان رنگ سبز موجب رشد رویشی گردید و افزایش رشد رویشی با درصد سایه اثر مستقیم داشت. با هدف کاهش تنشهای محیطی به همراه افزایش کیفیت محصول انگور ’ریشبابا‘ پوشش رنگ قرمز با سایهدهی 50 درصد پیشنهاد میگردد.https://jhs.um.ac.ir/article_41465_2120f1c76c75b6285e757110719b5efb.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122The Effect of Gamma Amino Butyric Acid on Improving Dehydration Stress Tolerance in Portulaca oleraceaتأثیر گاما آمینو بوتیریک اسید بر بهبود تحمل به تنش کم آبی در سبزی خرفه (Portulaca oleracea)6836914161910.22067/jhs.2022.73535.1106FAنجمه زینلی پوربخش علوم باغبانی دانشکده کشاورزی دانشگاه شهید باهنر کرمان0000-0002-8349-2164فاطمه عاقبتیگروه علوم و مهندسی باغبانی دانشگاه شهید باهنر کرمان، کرمان، ایران.0000-0003-1208-9113Journal Article20211118Introduction
<strong> </strong><em>Portulaca oleraceae</em> is used in many countries for a variety of purposes, including human nutrition and the conversion and pharmaceutical industries. The edible parts of <em>Portulaca oleracea</em> are the young organs, especially the brittle leaves and stems. Over time, this medicinal herb has been forgotten. Drought, on the other hand, is a factor in the decline of crops and horticulture around the world. Given the vastness of arid and semi-arid regions in Iran and also the reduction of access to water resources, appropriate arrangements should be made for the optimal use of water in the agricultural sector. Changing the planting pattern and using useful and resistant alternative species such as drought-tolerant medicinal plants can enable the optimal use of limited water resources. GABA is an important non-protein amino acid that plays a positive role in increasing plant resistance to stress.
Materials and Methods
<strong> </strong>This experiment was carried out in 2020 as a factorial based on a completely randomized design with three replications in the vegetable research greenhouse of the Faculty of Agriculture, Shahid Bahonar University of Kerman. Experimental treatments included different levels of GABA (0, 20, and 40 mM). Treatment with different concentrations of GABA was done in two stages of 6 and 12 leaves of <em>portulaca oleracea</em> and foliar application and application of dehydration stress in three levels of control, medium and severe at irrigation intervals of 7, 14, and 21 days from 6 leaf stage of plants to the end.
Results and Discussion
<strong> </strong>According to the analysis of variance, the effect of GABA at different concentrations and dehydration stress on plant height was significant at the level of 5% probability. Based on the mean comparison test, the highest plant height was obtained in GABA treatment of 40 mM and irrigation intervals of 7 days (control), and the lowest of this trait was obtained in GABA zero treatment and irrigation intervals of 21 days (highest stress level). The results of analysis of variance showed that the effect of GABA at different concentrations and dehydration stress on vegetative yield was significant, the interaction between irrigation intervals and GABA was significant at 5% level. Based on the mean comparison test, the highest vegetative yield was obtained in GABA treatment of 40 mM and irrigation intervals of 7 days and the lowest in control treatment and irrigation intervals of 21 days. According to the results of the analysis of variance table, the effect of GABA at different concentrations and dehydration stress on the amount of malondialdehyde was significant at the level of 1% probability. Based on the means comparison test, the highest amount of this trait was obtained in the control treatment. Comparison of the mean of the data showed that the effect of GABA at different concentrations and dehydration stress caused a significant difference in the probability level of 1% in the proline content of the data. Based on the mean comparison test, the highest amount of proline was observed in GABA treatment of 40 mM and irrigation intervals of 21 days and the lowest amount was observed in control treatment and irrigation intervals of 7 days. As can be seen in the comparison table of means, the highest activity of superoxide dismutase enzyme was obtained in GABA treatment at 40 mM and irrigation intervals of 14 days and the lowest in control treatment and irrigation intervals was 7 days (Table 2). The results of this study showed that the effect of GABA at different concentrations and dehydration stress on the activity of catalase was significant at the level of 1% probability. As can be seen in the comparison table of means, the highest level of catalase activity was 40 mM in GABA treatment and 21 days irrigation intervals and the lowest in GABA treatment was 40 mM and irrigation intervals were 7 days.
Conclusion
<strong> </strong>The results of this study indicate that GABA is able to greatly alleviate the oxidative stress caused by dehydration in <em>Portulaca oleracea</em>. This effect is quite evident in oxidative parameters, especially the activity of antioxidant enzymes. The concentration of 40 mM GABA was the most effective treatment in mitigating the effects of irrigation. The results show that the use of GABA makes <em>Portulaca oleracea </em>tolerant to dehydration stress.کمبود آب از تنشهای مهم غیرزیستی است که رشد گیاه و تولید محصول را تحت تأثیر قرار میدهد. این پژوهش جهت بررسی اثر تیمار گابا (گاما آمینو بوتیریک اسید) در غلظتهای مختلف بر عملکرد رویشی و برخی خصوصیات فیزیولوژیکی سبزی دارویی خرفه به صورت فاکتوریل بر پایه طرح کاملاً تصادفی و در سه تکرار در گلخانه سبزیکاری دانشکده کشاورزی دانشگاه شهید باهنر کرمان انجام شد. تیمارهای استفاده شده در این آزمایش شامل؛ فواصل آبیاری هر 7 روز (شاهد)، هر 14 روز (تنش متوسط) و هر 21 روز یکبار (تنش شدید) در کرتهای اصلی و محلولپاشی با گابا در سه سطح صفر، 20 و 40 میلیمولار در کرتهای فرعی بودند. پارامترهایی از جمله؛ ارتفاع بوته، عملکرد رویشی، درصد رطوبت نسبی برگ، میزان پرولین، قندهای محلول، مالوندیآلدئید، فعالیت آنزیمهای سوپراکسید دیسموتاز و کاتالاز اندازهگیری شدند. نتایج نشان داد که تیمار 40 میلیمولار گابا و در تنش با دور آبیاری هر 21 روز یکبار موجب حفظ بهتر میزان عملکرد رویشی حدود (19 درصد)، ارتفاع بوته (34 درصد)، رطوبت نسبی برگ (14 درصد)، پرولین برگ (11 درصد) و قندهای محلول (45 درصد) در مقایسه با گیاهان شاهد که گابا دریافت نکرده بودند، شد. همچنین هر دو غلظت کاربردی گابا فعالیت آنزیمهای آنتیاکسیدان را در مقایسه با شاهد در همه سطوح آبیاری به کار رفته ارتقاء بخشیدند. بنابراین کاربرد ترکیب زیستی گاما آمینو بوتیریک اسید (گابا) سبب تعدیل اثرات مخرب تنش کم آبی بر سبزی خرفه شده است. در نهایت استفاده از گابای40 میلیمولار برای افزایش و حفظ بهتر پارامترهای کمی و کیفی خرفه و ایجاد مقاومت به تنش کم آبی در این گیاه توصیه میشود. https://jhs.um.ac.ir/article_41619_f1bf0a8fc5efb029d2bdb7a1f8480f0d.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Optimization of Seed Germination, Growth Index and Photosynthetic Pigments Content of Kelussia odoratissima Mozaff Seedlings under Laboratory Conditionsبهینهسازی جوانهزنی بذر، شاخصهای رشد و رنگدانههای فتوسنتزی گیاهچه کرفس کوهی در شرایط آزمایشگاهی6937074155710.22067/jhs.2021.73715.1111FAخدیجه احمدیدانشگاه شاهد0000-0002-2289-9710حشمت امیدیدانشگاه شاهد0000-0002-2728-1469مجید امینیدانشگاه شاهد0000-0003-1283-1277الیاس سلطانیدانشگاه تهران0000-0003-0017-6703Journal Article20211123Introduction
<em> Kelussia odoratissima</em> Mozaff is a native species of Iran which is a rare and endangered species. It grows as a wild in cold and mountainous bioclimatic and is used in traditional medicine to treat various diseases such as cardiovascular disease, gastric ulcer, respiratory and intestinal inflammation. The change of status from dormancy to germination can be eliminated by using some treatments in accordance with the natural conditions of the mother base habitat. However, some physiological needs of dormant seeds can be met by scratching (mechanical and chemical), washing in running water, dry storage, cold and humid conditions, light, smoke, and plant growth regulators. The aim of this study was to investigate different strategies including pretreatment, leaching and constant germination temperature on seed germination characteristics and <em>Kelussia</em> seedling growth.
Materials and Methods
The experiment was conducted in Petri dishes at Seed Technology Laboratory of Agricultural Sciences Faculty of Shahed University.<em> K. odoratissima</em> Mozaff seeds were collected from their natural habitat in Fereydounshahr, Isfahan province in 2019.<strong> </strong>
This study was performed in the Crop Physiology and Seed Technology Laboratories of Shahed University, Faculty of Agricultural Sciences, from 23.09.2019 to 22.11.2019. The cultivation was in Petridish at constant germination temperatures after priming and leaching. The experiment was performed as a factorial experiment in a completely randomized design with three replications. Each replication included 36 Petridish and 20 <em>Kelussia</em> seeds were planted in each petri dish. Experimental factors include constant germination temperatures (1, 5, 10 and 15°C), duration of rinsing with running water at 15°C (24, 48 and 72 h) and hormone pretreatment with gibberellin (0, 250 and 500 ppm). Before applying the hormonal pretreatment and temperature, the seeds were washed in running water in such a way that seeds were placed in a strainer that was not immersed and water flowed on the seeds for the specified periods of time for this treatment. In this case, germination inhibitors were washed from the seed surface. According to the test period and laboratory conditions, the laboratory temperature could be controlled at 15 °C with a thermometer and cooling devices. Then, for hormonal pretreatment, the seeds were placed in containers containing gibberellin solution with concentrations of 0, 250 and 500 ppm and refrigerated at 4°C for 72 h. After washing the seeds, 20 seeds were placed in Petridish with a diameter of 10 cm and a height of 2 cm on Whatman filter paper No. 1 and at temperatures of 1, 5, 10 and 15°C with 16 h of light and 8 h of darkness passed. Due to the fact that germination in seeds grown at this temperature at 15°C was zero in all treatment compositions, it was excluded from statistical analysis. To analyze the data variance, the SAS 9.1 statistical software was used. The comparison of means of traits was performed using the Duncan test at 5% probability level.
Results and Discussion
Germination traits, growth indices and physiological parameters of seedling photosynthetic pigments under the influence of leaching, temperature, gibberellin and the interactions of leaching in temperature, leaching in gibberellin, temperature in gibberellin and the combination of leaching treatment × temperature × gibberellin showed significant differences. The results showed that the optimum germination temperature was 1°C and about 54% of seeds were able to germinate at this temperature without using any pretreatment. However, pretreatment of seeds at a temperature of 1°C with gibberellin at 250 ppm and washing for 72 h increased the germination rate to 65%. It has also been shown that treatment with gibberellin at 250 ppm seedling length and gibberellin at 500 ppm improves seedling fresh and dry weight in three leaching treatments at 10°C. Chlorophyll and carotenoid content of seedlings was observed in the combination of 24 hours leaching treatment, temperature of 5°C and gibberellin priming of 500 ppm. Due to the wide variety of species of Apiaceae and also the variety of type and depth of sleep, various treatments to break dormancy and stimulate seed germination of plants of this genus have been proposed, the most important of which are wet and gibberellin. It should be noted that the germination ecology and appropriate treatments to break dormancy in different plant species, plants of the same family, same species and different ecotypes of the same species can be completely different.
Conclusion
According to the results of this study, seed treatment with 72 hours of cold water washing, 1°C and gibberellin pretreatment with a concentration of 250 ppm was able to show the highest germination percentage to achieve High germination is recommended. In addition, at 5°C under gibberellin pretreatment and leaching showed a relatively high germination percentage. Accordingly, gibberellin hormonal pretreatment at low temperatures was effective in achieving more germination under priming conditions. Is. On the other hand, a concentration of 500 ppm gibberellin increased seedling weight and photosynthetic pigments. In general, a temperature of 1°C followed by a temperature of 5°C was effective in increasing the germination of celery seeds and was able to record better results. Also, the suitable seedling growth temperature for mountain celery is 10°C and the application of Gibberellin hormonal pretreatment improved the growth characteristics of <em>Kelussia</em> seedlings.کرفس کوهی (<em>Kelussia</em> <em>odoratissma</em> Mozaff) گونه بومی ایران است که از گونههای کمیاب و در معرض انقراض محسوب میشود. بهصورت خودرو در زیست اقلیمهای سرد و کوهستانی رشد میکند و در طب سنتی برای درمان بیماریهای مختلف مانند بیماریهای قلبی-عروقی، درمان زخم معده، تنفسی و التهاب روده کاربرد دارد. هدف از این مطالعه بررسی اثر ترکیبی دما، آبشویی و پیش تیمار بر روی جوانهزنی بذر گیاه دارویی کرفس کوهی است. فاکتورهای این مطالعه دما (1، 5، 10 و 15 درجه سانتیگراد)، آبشویی (24، 48 و 72 ساعت) و غلظتهای مختلف پیشتیمار جیبرلین (صفر، 250 و 500 پیپیام) بودند. نتایج نشان داد که دمای جوانهزنی بهینه یک درجه سانتیگراد بود و نزدیک به 54 درصد بذرها بدون استفاده از هیچ گونه پیش تیماری در این دما قادر به جوانهزدن هستند. با این وجود، پیش تیمار بذرها با جیبرلین 250 پیپیام و آبشویی به مدت 72 ساعت، درصد جوانهزنی را در دمای یک درجهی سانتیگراد به 65 درصد افزایش داد. همچنین نتایج مقایسه میانگین نشان داد که پیشتیمار جیبرلین 250 پیپیام طول گیاهچه و پیشتیمار جیبرلین 500 پیپیام وزن تر و خشک گیاهچه را در سه سطح آبشویی در دمای 10 درجه سانتیگراد بهبود بخشید. بیشترین محتوای کلروفیل و کارتنوئید گیاهچه در ترکیب تیماری آبشویی 24 ساعت، دمای پنج درجه سانتیگراد و اعمال پیشتیمار جیبرلین 500 پیپیام مشاهده شد. برای کاهش زمان جوانهزنی بذور کرفس کوهی اعمال دمای مناسب جوانهزنی همراه با آبشویی و غلظت پایین پیشتیمار جیبرلین میتواند بهترین شرایط را برای بالاترین درصد جوانهزنی بذور فراهم کند. این مطالعه میتواند راهنمای اساسی برای برنامههای کشت و حفاظت از گیاه دارویی کرفس کوهی، گیاه بومی و در معرض انقراض ایران باشد.https://jhs.um.ac.ir/article_41557_b36126eb93fbb1da4f1d1a2e0c83afc2.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Comparison of some Physicochemical Characteristics and Polyphenolic Content in Six Pomegranate (Punica granatum) Cultivarsمقایسه برخی خصوصیات فیزیکوشیمیایی و میزان پلی فنولها در میوه شش رقم انار7097194206210.22067/jhs.2022.74271.1116FAعلیرضا بنیان پورمرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارسبابک جمالیبخش تحقیقات علوم زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس، سازمان تحقیقات و آموزش کشاورزی. شیراز ، ایرانJournal Article20211221Introduction
Pomegranate <em>(Punica granatum</em> L.) is a nutrient dense fruit with a high health value and one of the most important Iranian fruit crop. Historical evidence reveals that the primary origin of pomegranate is Iran and that it has been spread from this region to other areas. A vast range of pomegranate varieties can be found in Iran; 760 original, decorative and wild ones. Pomegranate juice contains a high amount of total soluble solid (TSS), anthocyanins, polyphenolic compounds, vitamin C, sugars and proteins.Pomegranate is considered as one of the most tolerant fruit crops capable of growing under arid and semi-arid climatic conditions. Cultivar and growing region climate are the main factors determining chemical composition of pomegranate fruits; Significant differences in various fruit quality parameters such as organic acids, phenolic compounds, sugars and water-soluble vitamins have been reported in previous studies. The aim of present study was to compare and evaluate physical and biochemical characteristics of fruits and different polyphenolic compounds in juice of six commercial Iranian pomegranate cultivars.
Materials and Methods
This research was conducted in 2017 and 2018 years in a commercial orchard in Arsanjan region of Fras province. Six Iranian pomegranate cultivars included ‘Malas Yusef Khani’ (MYK), ‘Bajestani (BK), ‘Khazr Bardskan’ (KHZ), ‘Malas Dane Syah’ (MDS), ‘Rabbab’ (RB) and ‘Zard Anar Arsenjan’ (ZA) were studied. The trees were planted in randomized block design and spaced 5 and 3 m between and along the rows, respectively. The trees were grown under drip irrigation with routine cultural practices suitable for commercial fruit production. Orchard management was conducted uniformly according to optimized available recommendations (based on soil and water samples analysis) for the orchard site. Fruits were harvested randomly from orchard and some physicochemical characteristic of fruits were measured. Fruit length and fruit diameter measured by manual caliper, fruit and above ground weight was determined by digital scale. The fruit juice percentage was calculated by calculating the percentage of aril juice. TSS (Total soluble solids) expressed in Brix◦ was measured using a refractometer. The titrable acidity (TA) was determined by titration to pH 8.1 with 0.1M NaOH solution and expressed as percentage.Total anthocyanins, total polyphenols, vitamin C and anthyoxidant activity were measured spectrophotometrically. Polyphenolic compositions of juices (Gallic acid, Catechin, Caffeic acid, Chloregenic acid, p-Coumaric acid Vanilin, Trans-ferulic acid, Hesperedin and Ellagic acid) were also measured using HPLC analysis. The chromatographic analysis was carried out on Agilent Technologies 1200 series HPLC system. Chromatograms were recorded at 280 and 320 nm. Each compound was quantified by comparing its peak. Data was analyzed by SPSS software and means were compared using Duncan’s multiple range tests at 5% probability level.
Results and Discussion
Significant differences were found among studied pomegranate cultivars for various physical fruit characteristics, quality parameters and polyphenolic composition of fruit. ‘Malas Daneh Syah Yazd ’was the best in comparison to other cultivars. ‘Malas Daneh Syah Yazd’ had the highest fruit weight (332 g), fruit length (8 cm), fruit diameter (8 cm), TSS(15.77 Brix◦), anthocyanin content (26.98 mg 100 ml<sup>-1</sup>), polyphenol content (514.37 mg 100 ml<sup>-1</sup>) , ascorbic acid content (9.23 mg 100 ml<sup>-1</sup>) and antioxidant activity (52.2%). Also, the amount of polyphenols in this cultivar was relatively high. This cultivar had high amount of some polyphenol content such as cathechin (223.5 mg L<sup>-1</sup>), Hesperidin (30.55 mg L<sup>-1</sup>) and Ellagic acid (43.02 mg L<sup>-1</sup>) with no significant differences with highest amount. ‘Rabbab’ had the highest aril weight (340 mg) and moderate levels of other fruit characterestics, this cultivar had the maximum polyphenols such as gallic acid (163.1 mgL<sup>-1</sup>), catechin (264.2 mgL<sup>-1</sup>), caffeic acid (265.1 mgL<sup>-1</sup>), p-Coumaric (74.41 mgL<sup>-1</sup>) acid, vanillin (18.21 mgL<sup>-1</sup>) and ellagic acid (43.5 mgL<sup>-1</sup>). Zard anar’ pomegranate cultivar which was native to this region in terms of most biochemical properties had a low a‘mount .Therefor, among the studied pomegranate cultivars‘ Malas Dane syah’ and was the best. This cultivar had the highest fruit characteristics and polyphenol content such as ellagic acid.
Conclusion
The results of this study showed significant differences among studied pomegranate cultivars. ‘Dane syah Yazd’ had the highest physical and chemical characterestics of fruits. Previous studies showed that theses cultivars had good growth characteristics and high yield in comparison to other cultivars. Therefore, among the studied cultivars, ‘Dane syah Yazd’ is introduced as a suitable cultivar for this region. Also, ‘Rabbab’ Neyriz cultivar can be considered as a cultivar with high antioxidant properties of fruit juice due to having the highest amount of measured polyphenolic compounds, especially alginic acid.
این پژوهش به منظور بررسی ویژگیهای شیمیایی میوه انار در شرایط آب و هوایی استان فارس روی درختان شش ساله شش رقم انار شامل ارقام ’ملس یوسفخانی‘، ’بجستانی‘، ’خزر بردسکن‘، ’ملس دانه سیاه‘، ’رباب نیریز‘ و ’زرد انار ارسنجان‘ انجام گردید. درختان در قالب طرح بلوکهای کامل تصادفی با چهار تکرار کشت شدند و میوههای این ارقام در طی سالهای 1397 و 1398 برداشت شدند و هر سال بطور جداگانه ویژگیهای کمی، کیفی و بیوشیمیایی آنها مورد بررسی و مقایسه قرار گرفت. ویژگیهای مورد بررسی شامل خصوصیات فیزیکی و بیوشیمیایی آب میوه و همچنین ترکیب پلی فنولیک آب میوهها بود که با استفاده از آنالیز HPLC مورد بررسی قرار گرفت. نتایج نشان داد که از نظر ویژگیهای کمی و کیفی میوه و میزان ترکیبات پلیفنولیک آب میوه، اختلاف معنیداری در ارقام انار مورد مطالعه وجود دارد. رقم ’ملس دانهسیاه‘ دارای بیشترین وزن (332 گرم) و قطر میوه (8 سانتیمتر) بود. این رقم از لحاظ ویژگیهای بیوشمیایی میوه مانند میزان TSS(7/15 درجه بریکس)، مقدار آنتوسیانین (98/28 میلیگرم در 100 میلیلیتر)، مقدار فنول کل (3/514 میلیگرم در 100 میلیلیتر)، میزان ویتامین ث (23/9 میلیگرم در 100 میلیلیتر) و فعالیت آنتی اکسیدانی (2/52 درصد) نیز از سایر ارقام بهتر بود. رقم ’رباب‘ نیز از لحاظ دارا بودن میزان پلی فنولها مانند اسید گالیک (1/163 میلیگرم در لیتر)، کاتچین (2/264 میلیگرم در لیتر)، اسید کافئیک (1/265 میلیگرم در لیتر)، اسید کلروژنیک (40/74 میلیگرم در لیتر)، وانیلین (21/18 میلیگرم در لیتر)، اسید ترانس فرولیک ( 20/18 میلیگرم در لیتر) و اسید الاژیک (05/43 میلیگرم در لیتر) نسبت به سایر ارقام مورد مطالعه برتر بود. با توجه به موارد فوق از بین ارقام مورد مطالعه رقم ’ملس دانه سیاه‘ با توجه به خصوصیات مناسب کمی و کیفی میوه به عنوان یک رقم مناسب جهت این منطقه معرفی میگردد. https://jhs.um.ac.ir/article_42062_543256d9aa2905bab70dc63e0d6c2298.pdfدانشگاه فردوسی مشهدعلوم باغبانی2008-473036320221122Evaluation of Morphological and Phytochemical Diversity of different Populations of Phlomis olivieri Benth. in Hamedan Provinceبررسی تنوع مورفولوژیکی و فیتوشیمیایی جمعیتهای مختلف گوشبره (Phlomis olivieri Benth.) در استان همدان7217344174210.22067/jhs.2022.74320.1117FAمهتاب صالحیگروه علوم و مهندسی باغبانی دانشگاه بوعلی سینا ـ مجتمع آموزش عالی نهاوند (ویژه دختران)رمضان کلوندیبخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان همدان، سازمان تحقیقات، آموزش و ترویج کشاورزیJournal Article20211228Introduction
Medicinal plants have played an essential role in the development of human culture. Medicinal plants are resources of new drugs and many of the modern medicines are produced indirectly from plants. Although the production of secondary metabolites is controlled by genes, their production is considerably influenced by environmental conditions, so environmental factors cause changes in the growth of medicinal plants as well as the amount of active substances. Essential oil quantity and quality are affected by the different environmental conditions. Physiological, morphological and genetic variations were seen in populations of species that occurred in different habitats. These variations were created in response to contrasting environmental conditions. In many plant species, studies on the pattern of variation in populations have shown the localized populations are adapted to the particular environmental conditions of their habitat. The genus <em>Phlomis</em> L. (Lamiaceae) includes about 113 perennial herbs or shrubs distributed in Asia, Europe, and Africa. Some of the <em>Phlomis</em> species have been reported for their traditional uses as analgesic, diuretic, tonic, anti-diarrheic agents and to treat various conditions such as gastric ulcer, inflammation, diabetes, hemorrhoids and wounds. In Flora of Iran, this genus is represented by 20 species, including <em>Phlomis olivieri</em> Benth.
Materials and Methods
This study was conducted to evaluate the morphological and phytochemical diversity of eleven populations of <em>P. olivieri</em> Benth. from different districts of Hamedan province in 2021. Traits such as plant height, stem diameter, leaf length and width, fresh and dry weight of the flowering branch, inflorescence length, fresh and dry weight of the plant, number of inflorescence cycles, essential oil percentage were measured. In order to investigate the physical and chemical properties of soil, soil samples were collected from a depth of 30 cm. Then they were transferred to the soil laboratory. Plants samples were collected in the flowering stage and were dried at 25-30°C. They were stored in envelopes at 22±3°C away from the sun. For extracting the essential oil of the samples, 100 gr of the plant was milled and then distilled with water. Hydrodistillation lasted for 4 hours. The main components of essential oil were identified and determined by gas chromatography in the Institute of Medicinal Plants in Karaj. Gas chromatography was carried out on Agilent 6890 with capillary column 30m*0.25 mm, 0.25 mm film thickness. The grouping of populations based on morphological and phytochemical traits was done by cluster analysis in SPSS using the Ward method. Also, the traits correlation (quantitative) was done using the Pearson method.
Results and Discussion
According to the results, the highest fresh and dry weight of flowering branch (6.96 g and 3.48 g) and also the highest fresh and dry weight of the plant (11.77 g and 5.86 g) belonged to the Koohani population. The tallest inflorescence (24.2 cm) belonged to the Jowzan population and the shortest inflorescence belonged to the Gammasiab population (8.9 cm). The highest stem diameter (4.45 mm) was observed in the Garin population. The maximum plant height (49.4 cm) was related to the Rahdarkhaneh population, which was not significantly different from the Garin population, and the minimum was related to the population of Garmak (31 cm), which was not significantly different from the population of Gammasiab (33.50 cm). Also, 31 compounds were identified in this plant essential oil that caryophyllene, germacrene D, and (E)-b-Farnesene had the highest percentage of essential oil constituents. In this study, the highest amount of essential oil (0.04%) was related to the Koohani population which had the lowest altitude among other populations. Therefore, it seems that environmental factors, as well as genetic factors, have been effective in creating diversity in morphological and phytochemical characteristics of this plant.
Conclusion
The results obtained from this study showed that <em>P. olivieri</em> Benth. populations gathered from different regions of Hamedan province, had a high diversity in terms of essential oil content. The results showed that in addition to genetic factors, environmental and climatic factors also affect phytochemical traits. In this study, the highest amount of essential oil was produced in the Koohani population (located in Nahavand city) with the lowest altitude among other populations. According to the research on the essential oil components of <em>P. olivieri</em> in different regions of Iran, the components of its essential oil and their percentages are completely different; so, some of the components that are seen in one region, are not observed in another region, and this issue emphasizes on the effect of climatic conditions. This difference is quite evident even in the studied populations in a province.
جنس <em>Phlomis</em> از تیرۀ Lamiaceae حدود 113 گونه را در جهان شامل میشود. براساس آخرین گزارش، جنس <em>Phlomis</em> دارای 20 گونه و 3 هیبرید در ایران است که 9 گونۀ آن، انحصاری ایران هستند. گیاه <em>Phlomis olivieri </em>Benth. از گونههای بومی ایران است. گونههای مختلف <em>Phlomis</em> در طب سنتی، برای درمان برخی بیماریها ازجمله زخم معده، دیابت و التهاب مورد استفاده قرار گرفته است. این پژوهش، به منظور ارزیابی تنوع مورفولوژیکی و فیتوشیمیایی 11 جمعیت گیاه گوشبره، در سال 1400 در مناطق مختلف استان همدان به اجرا درآمد. براساس نتایج به دست آمده، بیشترین وزن تر و وزن خشک سرشاخه گلدار (96/6 و 48/3 گرم) و همچنین بیشترین وزن تر و وزن خشک گیاه (به ترتیب 77/11 و 86/5 گرم) به جمعیت کوهانی تعلق داشت. بلندترین طول گلآذین (2/24 سانتیمتر) مربوط به جمعیت جوزان و کوتاهترین طول گلآذین (9/8 سانتیمتر) مربوط به جمعیت گاماسیاب بود. بیشترین قطر ساقه (45/4 میلیمتر) در جمعیت گرین مشاهده شد. بیشترین ارتفاع گیاه (4/49 سانتیمتر) مربوط به جمعیت راهدارخانه بود که با جمعیت گرین، تفاوت معنیداری نداشت (<em>p</em><0.05) و کمترینِ آن، مربوط به جمعیت گرمک (31 سانتیمتر) بود که با جمعیت گاماسیاب (50/33 سانتیمتر) اختلاف معنیداری نداشت. همچنین، 31 ترکیب در اسانس شناسایی شد که کاریوفیلن، ژرماکرن دی، و ای ـ بتا ـ فارنسن، بیشترین درصد اجزای تشکیلدهنده اسانس را به خود اختصاص دادند. در این مطالعه، بیشترین اسانس (04/0 درصد) از منطقه کوهانی به دست آمد که در بین جمعیتهای مورد مطالعه، دارای کمترین ارتفاع از سطح دریا بود. بنابراین به نظر میرسد که عوامل محیطی نیز همانند عوامل ژنتیکی، در ایجاد تنوع در خصوصیات مورفولوژیکی و فیتوشیمیایی این گیاه مؤثر بودهاند.https://jhs.um.ac.ir/article_41742_3161e5627ef1cc4c8a41b8d53b041113.pdf