بررسی اثر اسموپرایمینگ بر شاخصهای جوانهزنی بذر چای ترش تحت تنش خشکی

Germination is one of the important stages in crop growth stages that is often influenced by environmental stresses, especially drought stress. In order to investigate the effect of osmopriming on seed germination of Roselle under drought stress, a factorial experiment in a completely randomize design with four replications was conducted in the research laboratory of Shahrekord University. Osmotic solutions were prepared by using PEG with four osmotic potentials (0, -4, -8, -12 bar) and drought stress with six osmotic potentials (0, -2, -4, -6, -8 ,-10 bar) by PEG (6000). The results showed that the main effects and interactions of osmopriming and drought stress on all traits were significant. In all prime treatments, with increasing of drought stress up to -4 bars, germination rate was increased.