بررسی واکنش متفاوت اکوتیپ‌های کرانه‌ای زیره سبز در پاسخ به ریکاوری بعد از تنش خشکی

Cumin (Cuminum cyminum L.) is a herbaceous and medicinal crop which planted in arid and semi-arid region of Iran . The aim of this study was to investigate the physiological behavior of two cumin seedlings ecotypes, which collected from different geographic regions, in response to drought stress in a completely randomized design with three replications. Relative water content (RWC) and electrolyte leakage (EL) were measured after 7 days of exposure to drought stress and after 2 day of recovery following stress relief. Growth parameters revealed significant differences in the behaviour of the two ecotypes. Water stress decreased RWC but increased EL in both ecotypes. Most of the significant changes were recorded in Sepidan ecotype (collected from cool area). Ardakan ecotype due to adaptation to arid areas, showed better response to drought stress than Sepidan ecotype. As a result, despite the heavy drought stress, our results demonstrated the high power recovery of cumin