بررسی تأثیر پرایمینگ بر ‌شاخص‌های رشد گیاه دارویی شاهدانه (Cannabis sativa L.) تحت تنش شوری طبیعی (نمک دریاچه قم)

To evaluate the effect of seed priming on seed germination of cannabis an experiment in a completely randomized design (CRD) were arranged ‌in 3 replications under salinity. Treatments consisted of five levels of salinity (zero, 2, 4, 8, 12 dS.m-1) and pre -treatment were levels of KNO3 (0.2 percent to 72 hours), GA3 (500 parts per million to 24 hours) and SA (600 parts per million for a period of time 24), respectively. Table of variance showed that the effect of priming treatments and salinity were significant at 0.05 probability levels on traits means. According to the results of the comparison table, the highest ratio of shoot length, shoot fresh weight and relative water content, the KNO3 and Most, root length, root fresh weight, shoot dry weight was achieved in previously treated with SA. The salinity of the surface salinity maximum root length of 8 dS.m-1 (1.10 cm) obtained the greatest shoot length dS.m-1 with eight levels of salinity (1.81cm).Interactive effects of salinity and priming was significant for the trait of stem length so that maximum shoot length of SA Salinity levels with two ds.m-1 (2.06 cm) were generally applied to priming with KNO3 and SA is recommended in order to achieve the highest germination characteristics.