Medicinal Plants
M. Salehi; R. Kalvandi
Abstract
Introduction 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 ...
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Introduction 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 Phlomis L. (Lamiaceae) includes about 113 perennial herbs or shrubs distributed in Asia, Europe, and Africa. Some of the Phlomis 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 Phlomis olivieri Benth.Materials and Methods This study was conducted to evaluate the morphological and phytochemical diversity of eleven populations of P. olivieri 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 P. olivieri 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 P. olivieri 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.
Pomology
H. Mohebbi; A. Ebadi; M. Taheri; M. Zarabi; M.R. Bihamta
Abstract
Introduction Grape (Vitis vinifera L.) is one of the most important economic plants in the world including Iran. One of the most basic effective factors of the growth of fruit trees is knowing their nutrition. Micronutrients are as important as Macronutrients for better growth, yield and quantity ...
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Introduction Grape (Vitis vinifera L.) is one of the most important economic plants in the world including Iran. One of the most basic effective factors of the growth of fruit trees is knowing their nutrition. Micronutrients are as important as Macronutrients for better growth, yield and quantity in plants. Garden plants suffer from severe zinc deficiency, followed by boron, manganese, iron and molybdenum. Foliar application of fertilizers is a useful tool to increase the nutritional effects of fertilizers or eliminate nutrient deficiencies during the growing season. The aim of this study was to study the nutritional effects of consumption of different compounds of micronutrient fertilizers of zinc chelate, iron and manganese as foliar consumption on the morpho-physiological traits of grape plant.Materials and Methods Field experiments were carried out to evaluate the effects of micronutrients alone and in combination on growth and fruit yield in grape grown at Iran, Zanjan province during 2016-18. Physical and chemical properties of the soil were evaluated before the experiment. During the two years of the research, no organic or chemical fertilizers were used except for the combination of fertilizer treatments of the relevant design. Treatments consist of foliar consumption of micronutrients fertilizers included two levels of EDDHA-Zn (0.1 and 0.3 %), EDDHA-Fe (0.1 and 0.2 %), and EDDHA-Mn fertilizers (0.1 and 0.2 %) and control levels (0 %) for them. This experiment was implemented in a factorial format based on a randomized complete block design with three replications and repeated for two consecutive ys. The measured traits consist of Length of the First inflorescence (X1), Number of Inflorescences per Branch (X2), Number of clusters per branch (X3), Number of Clusters per Plant (X4), Weight of a Cluster (X5), Cluster Size (X6), Berry Size (X7), Number of Berries per Cluster (X8), Weight of single Barry, X10: Leaf Area Surface. Leaf Dry Matter (X11), TSS (X12), Sugar Fruit Juice (X13), Fruit Juice Acidity (X14), Fruit Dry Matter (X15), Fruit Firmness (X16), Yield per Plant (X17), Yield per Hectare (X18). The experiment was performed in factorial format with three factors, each at three levels, based on a randomized complete block design with three replications in three locations (g; G) and in each location for two consecutive ys (Y). The analysis of each g was analyzed in the form of factorial experiment design and the effect of location factor was analyzed in the form of factorial-split (time) composite analysis in place. In the statistical model used, time and place factor considered as random and treatment was fixed.Results and Discussion Evaluation of morpho-physiological traits showed that the use of these fertilizers individually or in combination has significant positive effects on all measured traits (18 traits) at different stages of development. The simple effect of the factor of the y was significant only on some of the measured traits and the two and three-way interactions between this factor with the levels of treatment in the majority of traits were not significant; which indicates the probability that the factor of the y has no effect on the measured traits. Based on these results, the treatment combination of Fe 0.2 + Zn 0.3 + Mn 0.2 % EDTA was superior to other combinations, and traits of the number of inflorescence and number of clusters per branch and number of clusters per plant showed the best response than other measured traits. Consumption of micronutrients, especially iron, zinc and manganese, has favorable effects on yield indices, better fruit formation and fruit production per unit area, which affects photosynthetic activities and important metabolic pathways in plants, leading to produce higher amounts of primary metabolites such as higher sugar production in fruit, increase in soluble solids, also increase in growth indices such as leaf area, more yield-related traits such as number of inflorescences and number of spikes per branch and per plant, number and the dimensions of the cube are in clusters. On the other hand, these compounds help to absorb the main nutrients and play an active role in initiating metabolic processes such as cell wall development, respiration, photosynthesis, chlorophyll formation, enzymatic activities, production of growth regulators, and nitrogen fixation and reduction. Accordingly, these compounds were able to show better performance compared to the control level by accelerating the absorption of other nutrients, strengthening biochemical pathways and growth indices.Conclusion According to these results, the application of three fertilizers of zinc, iron and manganese EDTA individually or in combinations of two or three of them, especially at high concentrations simultaneously, is superior in comparison. And the treatment composition of 0.3% zinc + 0.2% iron + 0.2% manganese EDTA and then 0.3% zinc + 0.2% iron + 0.1% manganese EDTA has more significant and positive on measured traits and therefore as fertilizer compositions are recommended in vineyards in the form of leaves.
mahsa salehi; Nematollah Etemadi; naser honarjoo; mehrdad jafarpour
Abstract
In order toa desirable growth, plants need fertile soil which has the availability of nutrient elements in it. Sometimes, in spite of having access to the nutrient elements, decrease yield, due to undesirable physical situation. Stock (Matthiolaincana cv. Column Crimson) is one of the potting flower ...
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In order toa desirable growth, plants need fertile soil which has the availability of nutrient elements in it. Sometimes, in spite of having access to the nutrient elements, decrease yield, due to undesirable physical situation. Stock (Matthiolaincana cv. Column Crimson) is one of the potting flower that its growth medium traditionally including HAWAR soil, basin sediment and untreated waste municipal. Due to decrease reach to mentioned soils, so that, it is necessary to replace a growth medium and surveying the effect of different organic matter in pot stock. Garden soil was used as main source of medium and as control. In this study, treatments including garden soil amendment by 4 and 8 % (w/w) of different organic matter (untreated waste municipal, beet pulp, leaf mold, and municipal compost). Another treatment was traditional growth medium. This research was performed in a randomized complete block design with four replications. Result showed that manure treatments on plant height, floret diameter, carbohydrate content had significant different (p
D. Ashoori; S.A. Noorhosseini; M.N. Safarzadeh
Abstract
To study the effect of plant density and planting pattern on Iranian ox-tongue, an experiment carried out with two factors: planting pattern (square and rectangular pattern) and plant density (2, 4, 6, 8 plant m-2) in a factorial test performed based on RCBD in 3 replications during 2009-2010 in Latmahalleh ...
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To study the effect of plant density and planting pattern on Iranian ox-tongue, an experiment carried out with two factors: planting pattern (square and rectangular pattern) and plant density (2, 4, 6, 8 plant m-2) in a factorial test performed based on RCBD in 3 replications during 2009-2010 in Latmahalleh Eshkevarat village in Guilan province, Iran. Characteristics that measured included: dry flowers yield, plant dry-weight, number of inflorescence per plant, number of flower per inflorescence, plant height and flower length. The results indicated that effect of plant density on dry flowers yield, plant dry weight, number of inflorescence per plant, number of flower per inflorescence and flower length (P
