بررسی تأثیر تنش خشکی بر صفات فیزیولوژیک گلرنگ بهاره

To investigate the effect of stress on yield and yield components in spring safflower trial plots - which split in a randomized complete block design with three replications in Zerai - 1391 was conducted at Research Farm, College of Agriculture, Islamic Azad University of Sanandaj. In four normal irrigation in the rosette stage, irrigation at flowering and grain filling stage and the main factors Safflower four Sina, Faraman, Goldasht and Koseh were the main factors. Grain yield per plant, leaf area index, leaf relative water content (RWC), leaf weight ratio (LWR) and specific leaf weight (SLA) was about the size of clips. Based on the results of factor analysis at different levels (irrigation) for all traits except (SLA), revealed a significant difference. Different cultivars were highly significant in all traits. The main factor in the secondary interaction was significant for all traits except leaf. In Duncan way, the mean comparison showed that at 5% salt stress at flowering stage on grain yield, leaf area index (LWR) and stress at grain filling stage on yield (RWC) and (SLA) with the greatest impact has had. Koseh varieties and cultivars showed the greatest resistance to drought Goldasht had the highest yield.