مطالعه اثر تراکمهای متفاوت بوته بر ارتفاع و وزن هزاردانه ژنوتیپهای مختلف یولاف زراعی در اهواز

To study the effect of differen plant densities on hight and grains weight of five genotypes of oat during 2013-2014 growing season as field experiment at research field of Agronomy and Plant Breeding Department of Shahid Chamran University of Ahvaz. Experimental design was factorial based on RCB with three replications. Two factors were studied in this experiment. The first factor was five oat genotypes included V1, V2, V3, V4 and V5, and second factor was different plant densities of 300, 400 and 500 plant in per m2. . Results shows that the highest height and 1000 grain weight was obtained from V4 genotype. So with increasing plant density, light passes into the canopy was lower, and plants competition for light, usually increase your height. The reduction in seed weight due to the high density of matter in the filling period is insufficient .