نقش فتوسنتز جاری در مرحله پر شدن دانه در شکل گیری عملکرد دانه ارقام مختلف گندم نان در منطقه کرمانشاه

In this study the effect of post and thesis water deficiency and source limitation treatments on yield of six bread wheat cultivars (Norestar, Zarin, Pishgam, Oroum, Sivand, and Alvand) were examined. A spilt plot factorial based on completed block design with three replications was used. Water treatment (in main plot) was applied at two levels include: 1- Control (irrigation in all stages of growth) and 2- Water deficiency (based on the result of Amber thermic curve was applied from 11 April). Cultivars and source limitation treatments (complete leaves removal and flag leaf removal from an thesis)(in sub plot). Both source limitation treatments significantly reduced grain yield, 1000 grain weight and number of grains per spike in different bread wheat cultivars. Long cultivar of Norestar had the most amount of remobilization and contribution of remobilization in grain yield formation.