ﺗﺎﺛﻴﺮ ﺗﺴﺮﻳﻊ ﻛﻨﻨﺪه ﻫﺎ ﺑﺮ ﺑﻨﻴﻪ ﺑﺬر و ﭘﺎراﻣﺘﺮﻫﺎی ﺟﻮاﻧﻪ زﻧﻲ ﮔﻴﺎه داروﻳﻲ اﺳﭙﻨﺪ ( Peganum harmala L ) ﺗﺤﺖ ﺗﻨﺶ ﺷﻮر

bstract:
This investigation was conducted to evaluate the effects of the Osmopriming on seed germination of harmala , under saline stress condition. The design of the experiment was a factorial completely randomized design (CRD) with three replications. The experimental factors were five level of salinity by natural salt (0, 7, 14, 21, 28 ds.m-1), and four primed seed levels Kno3 (0.2 %, 72 hours), GA (500 ppm, 48 hours), hydro priming (water distiller, 24 hours) and control. At the first stage harmala were immersed in one level of Osmopriming treatment then dried and next treated by saline stress for up to 2 weeks at room temperature. Then the seeds were distilled by saline at 25 °C and subjected to saline stress treatments for two week. Results showed that salinity had a significant effect on the characteristics of seedling and with increased salinity, reduced germination parameters. Also, effects of priming on traits were significant (p <% 1). In the treatments of pre-treated, the most positive effect was in potassium nitrate and gibberellic acid on the germination rate and the average duration of gibberellic acid on germination of levels of salinity. Potassium nitrate pretreatment also increased the number of normal seedlings.