摘要 : A field experiment was carried out in 2010 to investigate the effects of different irrigation treatments (I₁, I₂, I₃ and I₄: well-watering on the basis of 70 mm evaporation from class A ... 展开 A field experiment was carried out in 2010 to investigate the effects of different irrigation treatments (I₁, I₂, I₃ and I₄: well-watering on the basis of 70 mm evaporation from class A pan and irrigation disruptions at flowering stage, grain filling stage and during flowering and grain filling stages, respectively) on ground green cover, yield and yield components of three chickpea cultivars (Azad, Jam, ILC482). The experiment was arranged as split-plot based on randomized complete block design in three replications, with the irrigation treatments in main plots and chickpea cultivars in sub-plots. Water stress during reproductive stages caused severe reduction in ground green cover. In the most stages of crop growth and development, the ground cover of ILC₄₈₂ was higher than that of the other cultivars. Pods per plant and grains per plant under I₁ and I₃ were significantly higher than that under I₂ and I₄. Mean 1000-grain weight under I₁ and I₂ was significantly higher than that under I₃ and I₄. Biological and grain yields per unit area were also significantly reduced by irrigation disruption and decreased with increasing duration of irrigation disruption. Harvest index under I₁ was higher than that of the other irrigation treatments. However, the difference between I₁ and I₃ was not statistically significant. Pods per plant and grains per plant of ILC₄₈₂ were significantly higher than that of Jam and Azad. However, the highest mean 1000-grain weight and harvest index were recorded for Azad. Consequently, grain yield per unit area was statistically similar for ILC₄₈₂ and Azad. 收起