M. Peyvandi; H. Parandeh; M. Mirza
Volume 31, Issue 2 , June 2015, , Pages 185-193
Abstract
Sweet basil (Ocimum basilicum L.) belongs to the Lamiaceae family. Sweet basil essential oil is used in food, medicine, and hygiene industries. In this study, the effect of different concentrations of nano iron chelate fertilizer (1, 3, 5 Kg.ha-1) and iron chelate fertilizer (1.5, 4.5, 7.5kg.ha-1) on ...
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Sweet basil (Ocimum basilicum L.) belongs to the Lamiaceae family. Sweet basil essential oil is used in food, medicine, and hygiene industries. In this study, the effect of different concentrations of nano iron chelate fertilizer (1, 3, 5 Kg.ha-1) and iron chelate fertilizer (1.5, 4.5, 7.5kg.ha-1) on the quantity and quality of O. basilicum essential oil (EO) were investigated. The experiment was conducted in a completely randomized design with four replications in a farm located in Saveh. After collecting the aerial parts of O. balilicum, the EO was extracted via water distillation method. Then, the EO was analyzed by GC and GC/MS. Sixteen components were identified in the EO of O. basilicum. The major components were methyl chavicol (37%), geranial (26%), neral (21%) and caryophyllene oxide (3.5%), respectively. Among different treatments, the means of 10 components showed significant differences. The mean of EO percentage in all samples, treated by Fe and nano Fe fertilizers, was more than that of control.
M. Ghorbanli; A. Alibabaee; M. Payvandi
Volume 29, Issue 3 , November 2013, , Pages 595-604
Abstract
Hypericum perforatum L. is a valuable medicinal species. The plant geneus includes 17 species in Iran, but H. perforatum is the only valuable species.The species plays an essential role in the treatment of depression. In this study, Hypericum perforatum was treated with different concentrations of molybdenum ...
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Hypericum perforatum L. is a valuable medicinal species. The plant geneus includes 17 species in Iran, but H. perforatum is the only valuable species.The species plays an essential role in the treatment of depression. In this study, Hypericum perforatum was treated with different concentrations of molybdenum including (control, 0.1, 0.4, 0.8, 1.6 µΜ) in Hoagland solution at 6.8 pH and then samples were used to measure biochemical parameters. Molybdenum significantly increased proline content. The shoot catalase and ascorbate peroxidase activities increased in all treatments of molybdenum, but in root, it was reduced in higher concentrations. Shoot peroxidase activities increased by treatments of molybdenum, except at a concentration of 0.8µΜ. The increase in peroxidase activity was also observed in roots but it was reduced at higher concentrations. The malondealdehyde and molybdenum content increased in higher concentrations of molybdenum. Molybdenum content increased by increasing treated molybdenum. Therefore, molybdenum stress increased the proline content and peroxidase, catalase and ascorbate peroxidase activities, and toxicity symptoms were observed in high concentrations of molybdenum as lipid peroxidation. Data were analyzed by SPSS and mean comparisons was performed by Duncan's multiple range test. In each experiment, 3 replications were used.
M. Ghorbanli; N. Adib hashemi; M. Peyvandi
Volume 26, Issue 3 , November 2010, , Pages 370-388
Abstract
In this study, the sodium chloride and ascorbic acid interaction on growth parameters, photosynthetic pigments (chlorophylls a, b and (a+b), carotenoids), amount of soluble sugar and total protein in Nigella sativa L. were investigated in greenhouse condition. This experiment was conducted in randomized ...
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In this study, the sodium chloride and ascorbic acid interaction on growth parameters, photosynthetic pigments (chlorophylls a, b and (a+b), carotenoids), amount of soluble sugar and total protein in Nigella sativa L. were investigated in greenhouse condition. This experiment was conducted in randomized design based on three replications. Plants were exposed to different concentrations of sodium chloride (0, 25, 50, 75 and 100 mM) and ascorbic acid (0 and 10 mM). In plants only exposed to sodium chloride, with the increase of sodium chloride concentration growth parameters, photosynthetic pigments and protein amount decreased compared to control samples while, amount of soluble sugar increased. In plants exposed to sodium chloride and ascorbic acid, growth parameters, photosynthetic pigments, amount of soluble sugars and total protein were higher compared to plants only exposed to sodium chloride. The result showed that spray of ascorbic acid (as an antioxidant) caused resistance against salt stress and decreased side effects of sodium chloride in Nigella sativa L.
M. Peyvandi; A. Rafati; M. Mirza
Volume 25, Issue 1 , May 2009, , Pages 75-84
Abstract
The purpose of this study was determining the effects of different nitrogen and phosphorus doses on the plant growth parameters, yields and essential oil composition of Artemisia annua L. The effect of nitrogen (urea 46%) and phosphorus (Triple super phosphate %48) at four levels (0, 40, 80, 120 kg/ha) ...
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The purpose of this study was determining the effects of different nitrogen and phosphorus doses on the plant growth parameters, yields and essential oil composition of Artemisia annua L. The effect of nitrogen (urea 46%) and phosphorus (Triple super phosphate %48) at four levels (0, 40, 80, 120 kg/ha) were examined. Experiments were designed based on Randomized CompleteBlock with 16 treatments and 3 replicates. Results indicated that differences between the average of height, number of branches and dry weight were significant at p≤0.05. The maximum of branches number and height of plant were gained in the N40P40 and N80P40 treatments. Increasing of P fertilizer more than 80 kg/ha decrease the growth parameters significantly. Essential oil of leaves at flowering stage was obtained by hydro-distillation. Percentage of essential oil showed significant increase in N40P0 and N80P0 treatments. Chemical compounds of leaf oil were identified by GC/MS. Twenty four components were found which the major compounds were artemisia ketone, camphor, 1,8-cineole, artemisia alcohol, viridiflorene and alpha-pinene
