بررسی تأثیر پرایمینگ بر خصوصیات جوانه زنی و رشد گیاهچه‌های ذرت تحت تنش خشکی

Priming is one of the seed enhancement methods that might be resulted in increased seed performance (germination and emergence) under stress conditions, such as salinity, temperature and drought stress. The objective of this research was to evaluate effect of priming on seed germination of hybrid maize varieties 704 under drought stress in the laboratory tests. Treatments were combinations of 2 levels of drought stress and no stress that was carried out by PEG 6000 and 3 levels of priming (Cacl2 ،Nacl, Kcl) and control with 3 replication. Levels of drought stress was createdusing (PEG 6000). Results indicated that under drought stress germination rate and Radicle and Plumule dry weight decreased, but priming seeds showed lower decrease. Results also showed the highest germination rate ( 9.6 seeds per day ) in the treatment of Kcl and maximum length and dry weight Radicle and Plumule treated Cacl2 in conditions non -stress were obtained.