Bahare Kashefi; Mohadese Ghods; Mohamad Mogadam
Abstract
To study the interaction effect of the salinity and salicylic acid on some morphological and physiological traits in clary sage (Salvia sclarea), a pot experiment was conducted as factorial based on a completely randomized design with three levels of NaCl and control (zero, 50, 100 and 150 mM), as the ...
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To study the interaction effect of the salinity and salicylic acid on some morphological and physiological traits in clary sage (Salvia sclarea), a pot experiment was conducted as factorial based on a completely randomized design with three levels of NaCl and control (zero, 50, 100 and 150 mM), as the first factor and three levels of spraying the solution of salicylic acid and control (zero, 100, 200 and 300 mg/L), as the second factor with three replications in the greenhouse of Semnan Jihad-e-Agriculture Education center in 2013.The results of data variance analysis showed that the interaction of the salinity stress and salicylic acid levels were significant in other traits except the leaf length fresh weight and the rate of carotenoids. The maximum effect was seen at the salinity level of 50 and 100 mM and salicylic acid application at 200 mg/l. The results of this study indicated that leaf area and number, petiole length, leaf length and width, leaf fresh and dry weight, root length, chlorophylls concentration were influenced by the salinity levels in this plant. Somehow, their rates were decreased by increasing the salinity level, whereas the rates of soluble sugar, proline and carotenoid were increased. The application of salicylic acid showed a reducing effect in all traits.
sodabe norzad; Ahmad ahmadian; Mohammad Moghaddam; elham daneshfar
Abstract
To study the effect of drought stress during using organic and chemical fertilizers on morphological, agronomic traits and the essential oil of coriander, a field experiment was conducted as split plot based on randomized complete block design in three replications at Agricultural Research Station, College ...
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To study the effect of drought stress during using organic and chemical fertilizers on morphological, agronomic traits and the essential oil of coriander, a field experiment was conducted as split plot based on randomized complete block design in three replications at Agricultural Research Station, College of Agriculture, University of Torbat Heydarieh, Iran during growing season of 2010-2011. Treatments were consisted of three levels of drought stress (30, 60 and 90 percent FC) and fertilizer treatments [control, NPK (60: 60: 40), caw manure (25 ton/ha) and vermicompost (25 ton/ha)]. Different traits such as plant height stem diameter, number of branches, number of leaves per plant, fresh and dry weight, herbage yield and number of umbels per plant, number of seeds per umbel, total number of seeds in plant, fruit yield, 1000 seed weight and essential oil percentage and yield were recorded. Analysis of variance indicated that water stress and application of fertilizer treatment had significant effect on all studied trait. The maximum herbage yield (5371 kg/ha) and seed yield (3905 kg/ha) were achieved in 90 percent FC combined with NPK and mild stress under NPK treatment, respectively. The highest essential oil percentage (0.77 percent) and essential oil yield (18.49 kg/ha) were obtained in mild stress by using chemical fertilizers. According to the fact that application of fertilizers in mild stress conditions leads to increase in essential oils yield, using chemical fertilizers under mild drought stress is recommended for coriandering as a medicinal plant.
Sophia Soroori; Mohammad Moghaddam; Hamid Hashemi Moghaddam
Abstract
A filed experiment was conducted to assay the effect of nitrogen fertilization and cultivated density on essential oil content on dragonhead (Dracocephalum moldavica) in semi-arid conditions in 100 km of South East of Mashhad. The experiment was done as factorial based on randomized complete blocks design ...
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A filed experiment was conducted to assay the effect of nitrogen fertilization and cultivated density on essential oil content on dragonhead (Dracocephalum moldavica) in semi-arid conditions in 100 km of South East of Mashhad. The experiment was done as factorial based on randomized complete blocks design with three replications, factor included four levels of nitrogen fertilization (0, 50, 100, 150 kg/ha) and three levels of cultivated density(20, 30, 40 cm). The results showed that the effect of nitrogen fertilization and cultivated densityhad significant effect on plant height, number of primary shoot, fresh and dry weight of plant, essential oil content and herbage yield of dragonhead. The highest plant height, number of primary shoot, fresh and dry weight of per plant was obtained from 40 cm cultivated densitywith 100kg/ha N treatment. The highest herbage yield (10.4 ton/ha), essential oil content (0.46 percent) and essential oil yield (44.9 kg/ha) obtained from 40 cm with 100kg/ha N treatment. In conclusion, application of 100 kg/ha N fertilizer with cultivated density40 cm can be recommended for the maximum of herbage and oil yield of dragonhead in this condition.