M.A. Thesis:

Evaluation of Tolerance of Chickpea Genotypes to Weed Competition in Dryland condition

To evaluate the tolerance of Chickpea genotypes to weed competition in dryland condition a factorial experiment was conducted in a randomized complete block design with three replications in a private farm in Krughdeh Village (Sabzevar, Razavi Khorasan) in 2015-2016. The factors were of six cultivar )Azad, Arman, Hashem, Adel ,Bivanich and ILC482) and interference (control and non -control) .The result showed that control of weeds in compare with non -control caused decrease in plant height (10.78%), number of lateral branches (32.14%),number of pods per plant (34.55%), number of seeds per plant (32.83%), 1000 seed weight (8.16%), biological yield (21.26%) , economical yield (25.09%) and the harvest index (3.51%). Among the cultivars types being examined Hashem produced the highest economic yield in terms of both interference and non-interference. In weed free condition, there was not significant difference between Hashem and ILC482. In weedy and weed free condition, Bivanich cultivar had the least economical performance . Overal, the result showed that weed interference dramatically reduced economic yield in all cultivars, Among the cultivar both in weedy and weed free conditin Hashem was the most suitable cultivar.

Keywords: interference, competence , cultivars ,Chickpea , weed