اﺛﺮ ﺗﻨﺶ ﻛﻢآﺑﻲ در ﻣﺮاﺣﻞ ﻣﺨﺘﻠﻒ رﺷﺪ ﺑﺮ ﻋﻤﻠﻜﺮد روﻏﻦ ﮔﻠﺮﻧﮓ ﺑﻬﺎره

bstract
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 Irrigation levels (normal irrigation in the rosette stage, irrigation at flowering stage and grain filling stage) in the main plots and four varieties of safflower (Sina, Faraman, Goldasht and Koseh) in subplots were. Plant height, number of seeds per plant, seed yield and oil percentage was about the size clip. Analysis of variance based on the impact factor (water stress) of the height component is very significant for the other traits, the cultivars differed for all four traits were highly significant. Although the effects of stress in the rosette stage of flowering and grain filling, but even more pale than normal irrigation significantly reduced the percentage of oil and plant height. Koseh varieties grain yield, number of seeds per plant and plant height accounted for. While oil percentage ranks third in the Sinai and was Goldasht. Sina had the greatest influence on the number of dehydration stress.