بررسی تنوع ژنوتیپی گل محمدی در ایران بر اساس میزان اسانس و برخی صفات مورفولوژیک و فیزیولوژیک

مقالات آماده انتشار

نوع مقاله : مقالات پژوهشی

نویسندگان

• بهزاد کاویانی ¹
• رعنا محمدی پور ²
• داود هاشم آبادی ²
• محمدحسین انصاری ³
• رسول انسی نژاد ⁴
• احمد رضا بریموندی ²

¹ دانشگاه آزاد اسلامی، واحد رشت

² دانشگاه آزاد اسلامی واحد رشت

³ گروه زراعت و اصلاح نباتات، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

⁴ گروه باغبانی، دانشکده کشاورزی، دانشگاه آزاد اسلامی، رشت

https://doi.org/10.22067/jhs.2022.76452.1167

چکیده

گل محمدی (Rosa damascena Mill.) به عنوان یک گونه گیاهی چند منظوره (خوراکی، دارویی، معطره و زینتی)، مورد بهره‌برداری قرار می‌گیرد. اسانس گل این گیاه کاربردهای زیادی در صنایع مختلف دارد. تنوع گسترده‌ای از نظر عملکرد گل و اسانس در بین ژنوتیپ‌های مختلف گل محمدی در شرایط متفاوت اکولوژیکی در ایران وجود دارد. ارزیابی تنوع ژنتیکی در میان گل‌های محمدی ایران به منظور اصلاح ژنوتیپ‌های این گل‌ها با ویژگی‌های باغی مناسب حائز اهمیت زیادی است. در این پژوهش، تنوع ژنتیکی ژنوتیپ‌های جمع‌آوری‌شده از استان‌های گیلان، ایلام، گلستان، تهران و کاشان به منظور معرفی ژنوتیپ برتر و بهره‌برداری از آن در برنامه‌های اصلاحی و اقتصادی بررسی شد. این تحقیق در قالب طرح بلوک‌های کاملاً تصادفی در 3 تکرار اجرا شد و برای هر تکرار 5 پاجوش (در مجموع: 75 پاجوش) در نظر گرفته شد. نمونه‌ها از نظر عملکرد اسانس، تعداد حلقه‌های مختلف گل و ویژگی‌های مورفولوژیک و فیزیولوژیک مورد ارزیابی قرار گرفتند. نمونه‌برداری برای اندازه‌گیری شاخص‌های مورفولوژیک و فیزیولوژیک، بعد از بازشدن غنچه‌های گل در اوایل اردیبهشت ماه انجام شد. نتایج نشان داد که بیشترین میزان اسانس (042/0 و 038/0 درصد)، به ترتیب از گلبرگ‌های ژنوتیپ‌های ایلام و کاشان به‌ دست آمد. بیشترین وزن گلبرگ (70/2 و 30/2 گرم)، به ترتیب مربوط به گلبرگ‌های ژنوتیپ‌های ایلام و کاشان بود. بالاترین طول و عرض گلبرگ نیز در این دو ژنوتیپ به دست آمد. بیشترین تعداد گلبرگ (80/71 در هر بوته) مربوط به نمونه‌های گیلان بود. بالاترین میزان کلروفیل a، مربوط به ژنوتیپ ایلام و بالاترین میزان کلروفیل b، کاروتنوئید و آنتوسیانین، مربوط به ژنوتیپ‌ کاشان بود. تعداد پرچم، تعداد مادگی، سطح برگ، طول برگ و ارتفاع بوته نیز اندازه‌گیری شد. در مجموع؛ ژنوتیپ‌های ایلام و کاشان به دلیل عملکرد بالا در تولید اسانس و اغلب صفات مورفولوژیکی و فیزیولوژیکی به عنوان ژنوتیپ‌های برتر و ذخایر توارثی مناسب برای برنامه‌های اصلاحی پیشنهاد می‌شوند. گسترش رویشگاه‌های گل محمدی اطلاعات مفیدی را برای تولید انبوه در آینده و مدیریت منابع ژنتیکی فراهم می‌نماید.

کلیدواژه‌ها

• روغن‌های ضروری
• خانواده گل سرخ
• تنوع ژنتیکی
• عملکرد گل
• Rosa damascena Mill

موضوعات

• گیاهان دارویی

عنوان مقاله [English]

Investigation of Genotype Variation of Damask Rose in Iran Based on the Rate of Essence and some Morphologic and Physiologic Traits

نویسندگان [English]

• Behzad Kaviani ¹
• Rana Mohammadipour ²
• Davood Hashemabadi ²
• Mohammad Hossein Ansari ³
• Rasoul Onsinejad ⁴
• Ahmad Reza Berimavandi ²

¹

² Islamic Azad University, Rasht Branch

³ Department of Agronomy and Plant Breeding, Rasht Branch, Islamic Azad University, Rasht, Iran

⁴ Department of Horticultural Science, Faculty of Agriculture, Islamic Azad University, Rasht

چکیده [English]

Introduction

Damask rose (Rosa damascena Mill.) is used as a multi-purpose species (edible, medicinal, aromatic and ornamental). The flower essential oil of this plant has many applications in various industries. There is a wide variety of morphological, phonological, flower shape, yield and yield of essential oils among genotypes and different populations of Damask rose in various ecological conditions in Iran. Evaluation of genetic diversity among Damask rose of Iran is important in order for breeding purposes. Some studies on phenotype, essential oil and genetic diversity were also carried out among different cultivars of rose flowers in other parts of the world. Significant diversity has been reported among the populations and genotypes of rose in different ecological conditions for many traits. Identifying superior species, cultivars and populations is important for commercial cultivation and more essential oil production. It is difficult to understand genetic diversity in roses because natural hybridization and spontaneous mutations with high abundance occurs in this plant. Morphological differences can be due to the geographical coordinates, natural hybridization and mutations. Therefore, it is important to identify the genetic diversity among the Iranian rose flowers to improve the genotypes of these flowers with appropriate garden features. The purpose of this study was to investigate and compare the genetic variety of Damask rose in Guilan, Ilam, Golestan, Tehran and Kashan in order to introduce superior genotype based on essence content and some other morphological and physiological traits.

Materials and Methods

Five genotypes of Damask rose including Kashan, Ilam, Golestan, Tehran and Guilan genotypes were evaluated as plant materials. Plant materials were collected from mentioned-above regions as root-sucker and transferred to the farm of Research Institute of Forests and Rangelands of the country. The design used was a completely randomized block design, which was performed in 3 replications and was considered for each 5-suckers’ repetition (total: 75 suckers). In each replication, three specimens of each genotype were planted in pits with diameter and depth of 50-60 cm. The distance between scions per rows was 2.5 meters and row spacing from each other was 2 meters. During the experimental period, the bushes were irrigated using drip (trickle) irrigation method. The sampling was performed to measure morphological and physiological parameters after the blooms were opened in early May. Evaluated parameters were plant height, leaf length, leaf width, leaf area, petal number, stamen number, carpel number, fresh weight of petals, petal anthocyanin levels, petals essential oil levels, chlorophyll content and leaf carotenoids. Data were analyzed by ANOVA and, if significant, Tukey analysis was used. SPSS software was used for statistical analysis.

Results and Discussion

The results showed that the highest amount of essential oil (0.042 and 0.038%) was extracted from the petals of Ilam and Kashan genotypes, respectively. The highest petal weight (2.70 and 2.30 g) was related to the petals of Ilam and Kashan genotypes, respectively. The highest petal length and width were obtained in these two genotypes. The largest number of petals (71.80 per each plant) was related to Guilan samples. The highest amount of chlorophyll a was related to Ilam genotype and the highest amount of chlorophyll b, carotenoids and anthocyanin was related to Kashan genotype. Stamen number, carpel number, leaf area, leaf length and plant height were also measured. In the present study, rose flower genotypes collected from different parts of Iran showed significant diversity in relation to morphological and physiological properties, especially essence. The results of the present study showed that there was a significant correlation between the amount of essence in the petals and the weight and dimensions of the petals, so that the Ilam and Kashan genotypes with more essence in their petals had higher weight and dimensions. Similar findings related to the correlation between flower yield and its components in roses flowers were presented in some studies. The number of flowers per branch, the fresh weight of each flower and the number of flowers per branch can be a suitable choice for improving flower yield in rose flower genotypes. Some studies have shown that the weight of the flower has a very strong, positive and significant correlation with the flower yield. The findings of the present study confirm the results obtained in these studies. Despite the geographical distance between some genotypes, the high similarity coefficient between them may indicate the common origin or continuous and purposeful genotypes. On the other hand, the low similarity coefficient between genotypes proposes relatively low geographical connection and different primary origin. In the present study, there was a low correlation between the amount of essence in the petals and the weight and dimensions of the petals in the Ilam and Kashan genotypes with the Golestan and Guilan genotypes. Finding the high correlation between the more important traits is of high value in breeding programs and the selection of superior genotypes. Some reports have been presented to compare rose flower genotypes based on morphological properties. Generative traits, including flower characteristics, are more suitable for genetic and evolutionary evaluations than vegetative traits. The results of some researchers in Iran and elsewhere in the world showed that flower yield per plant is associated with some other traits, including flower number, dimensions and weight of flowers, and the number of branches in the plant. The genetic analysis of rose flower genotypes showed that some genotypes collected from different areas are genetically relevant and some are separate. This subject shows effective role of ecological conditions in changing and variability of different species and varieties. The results indicated that the difference in the amount of essential oil compounds is mostly influenced by environmental and physiological factors. Some studies have shown significant diversity in essential oil efficiency and yield in different samples of rose flowers. The morphological difference between the different genotypes of this flower indicates the presence of germplasm and the proper capacity to improve the traits and the ability to select the best genotypes using morphological markers to enhance flower yield in the country. Overall; Ilam and Kashan genotypes are suggested as superior genotypes for breeding programs.

کلیدواژه‌ها [English]

• Essential oils
• Rosaceae family
• Genetic variation
• Flower yield
• Rosa damascena Mill