effect of seed priming on germination and seedling growth of chamomile under salinity
نویسندگان
چکیده
in order to study chamomile tolerance to salinity and find a way to increase its tolerance afactorial experiment was conducted in acompletely randomized design with three replications in 2012. seeds primed with salicylic acid and gibberellic acid (ga) at 250 ppm by a combination of the treatments at 12 and or 24 hours, 12 hours with salicylic acid after 12 hours in ga, and vice versa. the second factor included salinity levels (zero, 50, 100 and 150 mm nacl). germination percentage, mean germination time, germination rate, mean daily germination time, daily germination rate, plumule or root length, and seed vigor and catalase and peroxidase activity were measured. results showed that salinity reduces germination percentage, mean daily germination time, length of root and hypocotyl germination rate whereas increased antioxidant enzyme activities. the greatest effect obtained by a combination of salicylic acid-ga. the maximum activity of peroxidase belonged to salicylic acid-ga and catalase activity by priming with salicylic acid at 24 hours.
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effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
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Effect of Seed Priming on Germination and Seedling Growth of the Caper (Capparis Spinosa) Under Drought Stress
Objective: To evaluate the effect of chemical stimuli on germination and seedling growth of Caper (Capparis Spinosa) under drought stress. Methods: Factorial experiment in a completely randomized design with four replicates per treatment were performed. First factor of priming include three levels of acetylsalicylic acid (300, 200 and 100 mg/L), gibberellic acid levels (500, 250 and 12...
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Soil and water salinity are the most important problems that limit crop production, especially in the arid and semi-arid regions. This study was conducted to investigate the effect of growth-promoting bacteria and selenium nanoparticle pretreatment on increasing the tolerance of the Chenopodium quinoa plant to salinity. A factorial experiment was conducted in a completely randomized design with...
متن کاملEffect of Seed Priming on Germination and Seedling Growth of the Caper (Capparis Spinosa) Under Drought Stress
Objective: To evaluate the effect of chemical stimuli on germination and seedling growth of Caper (Capparis Spinosa) under drought stress. Methods: Factorial experiment in a completely randomized design with four replicates per treatment were performed. First factor of priming include three levels of acetylsalicylic acid (300, 200 and 100 mg/L), gibberellic acid levels (500, 250 and 12...
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عنوان ژورنال:
تولید گیاهان زراعیجلد ۶، شماره ۳، صفحات ۱۴۵-۱۶۴
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