بررسی مکانیسم‌های فرار از تنش خشکی از طریق طول دوره رشد در ژنوتیپ‌های گلرنگ

In this research the effect the mechanisms of drought escape through phenological characteristics and effects on morphological characteristics of Safflower (Cartamus tinctorius L.) cultivars was studied under different moisture regimes. A three replicate split plot RCBD field experiment was conducted at the filed of Islamic Azad University, Khorasgan Branch. Main plot different environmental conditions included normal irrigation, medium drought stress, severe drought stress and subplot included different genotypes. Analysis of variance showed that there were significant differences between some traits and drought stress reduced the days to flowering, days to maturity, height, and the number of branches plant height reduction under stress conditions is due to photo disorders in plant. The genotype Markasi as the earleast maturity and the genotype Kooseh as the latest maturity were recognized in this research. Early maturity is one tolerance, as escape from drought.