علی اصغر میرزایی عبدالیوسفی - دانشجوی کارشناسی ارشد زراعت دانشگاه آزاد اسلامی واحد ارسنجان
برمک جعفری حقیقی - استادیار دانشگاه آزاد اسلامی واحد ارسنجان
یحیی امام - استاد دانشگاه شیراز

A field experiment was conducted to evaluate the effect of planting density and cycocel (۲-chloroethyl trimethyl ammonium chloride) CCC application and yield components of wheat (cultivar Cross Azadi) in Islamic Azad University of Arsanjan, in ۲۰۰۹-۲۰۱۰. The experimental design was RCBD. Treatments included planting density (۱۰۰, ۲۵۰, ۴۰۰ and ۵۵۰ plants in square meter) and chlormequat chloride concentrations: (۰ and ۲.۵ l/ha-۱). Results showed that chlormequat chloride applied caused to increase significantly grain yield, biological yield, spiklet/ear, ۱۰۰۰-grain weight, number of spikes m-۲, number grain of spikes and harvest index compared with the control. Application of Chlormequat chloride decreased significantly plant height and infertile tillers per plant compared to the control. Increasing plant density increased spikes m-۲  biological yield, Grain yield,  plant height, die tillers per plant  and harvest index than Density  ۵۵۰ plant in square meter with applied chlormequat chloride has  the highest grain yield than other densities and density ۱۰۰ plant in square meter has the lowest grain yield. Plant density of ۵۵۰ plant m-۲ and chlormequat chloride application is recommended for conditions similar to the present investigation.

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