عنوان مقاله [English]
نویسندگان [English]چکیده [English]
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.