ارزيابي پاسخ ژنوتيپ هاي نخود كابلي (Cicer arietinum L.) به تاريخ كاشت

Evaluation of Kabuli chickpea (Cicer arietinum L.) cultivars response to sowing date

In order to study the effect of terminal drought stress on some quantitative traits and tolerance of three kabuli chickpea genotypes, an experiment was carried out at Kohdasht, Iran, on a loam soil using, a split plot experimental design with three replications. Three sowing dates (autumn, winter and spring) were assigned to main plots and three Kabuli chickpea genotypes (ILC482, Greet and Hashem) to sub plots. Results indicated that delay in sowing date decreased dry matter (66%), and grain yield (89%). Grain yield reduction was mainly due to reduced number of pod/plant (60%), 100 seed weight (32%). Considering the stress tolerance index (STI) Greet had the highest grain yield under the optimum condition (1464 kg/ha) as well as under terminal drought stress condition (302 kg/ha). It also performed to be resistant to terminal drought stress and height temperature conditions, according to stress susceptibility index (SSI).