بررسی تاثیر میزان بذر و ازت روی عملکرد کمی و کیفی کلزا

In order to investigate the effect and efficiency of nitrogen and seed levels on quality and quantity of yield and yield components of one cultivar of rapeseed (Zarfam), an experiment was conducted in a split plot design with three replication in agricultural and natural resources research center of lorestan province Iran from 2004 to 2006. In this experiment five levels of urea (0.5R, 0.75R, R, 1.25R and 1.5R) were assigned in the main ha) in subplots. During growth season some per plant, number of pods per plant, d on five random plants. After harvesting seed yield and 1000-seed weight were weighted and oil percent determinated. nt difference among urea levels. Urea levels of 1.5R showed the highest seed yield (4177.3kg/ha) and R(285kg/ha) with yield of 4121.8kg/ha was latter rank. Urea level of 0.5R showed the lowest seed yield levels were not significant difference. Seed rate of highest seed yield (4156.6kg/ha). Intraction effect of urea level of of 8kg/ha with seed yield of 4686.5kg/ha was the first rank. the properest seed rate was 6-8 kg/ha. a levels, Seed rate, Seed yield. plots and four levels of seed (6, 8, 10 and 12 kg/ characters such as plant height, number of braches number of seeds per pod were measure The results indicated that seed yield was not significa (3711.4 kg/ha). The results indicated the seed 12kg/ha producted the 1.5R and seed rate The best urea level was R and Key words:Rapeseed, Ure