investigation of phenological and morphological characteristics and correlation them with yield in chickpea (cicer arietinum l.) cultivars under drought stress and n fertilizer in kermanshah province

this study was performed in order to evaluate the effects of drought stress and nitrogen fertilizer on phenology, morphology and yield of four cultivars of chickpea. this experiment was performed in a split-factorial using randomized complete block design with three replications. drought stress treatment stood in main plots (in three levels) consisting of no drought stress (control), moderate drought stress (irrigation at planting and early flowering) and severe drought stress (no irrigation). combination of nitrogen fertilizer (in two levels 0kg n/ha and 25kg n/ha) and cultivar treatment (four cultivars azad, bivanij, hashem and ilc482) stood in sub plots. results showed that drought stress had significant effect on phenology and morphological traits, biomass yield and grain yield. increase of drought stress lead to reduce of growth period, plant height, biomass yield and grain yield. among cultivar treatments, bivanij had shorter phenological stages time as complete ripening and prepared of harvesting in 82 day in high water stress and had a highest biomass and grain yield. hashem cultivar had a maximum growth length. also, nitrogen fertilizer had a positive effect on grain yield in non stress condition.