در منطقه اروميه BRASSICA NAPUS بررسي ويژگي هاي زراعي و محصول دهي ارقام كلزا

Study of Agronomic Characteristics and Productivity in Rapeseed (Brassica napus L.) Cultivars in Urmieh Region

An experiment was carried out during 2000-2001 growing season to determine the adaptability and productivity of 25 new rapeseed (Brassica napus L.) Cultivars under cold condition of Urmieh region. A randomized complete block experiment with four replications at Nakhjavani Agr. Res. Station of Kahriz - Urmieh (37°, 53ʹN and 45°, OʹE) was used. The results obtained from the experiment showed significant differences at 1% level with respect to the seed and oil yield of cultivars, Fall cultivars, DP. 94. 8, Rigent Cobra hybrid, Cocktail, Consul and SLM046 (control) with optimum agronomic characteristics such as establishment of suitable rosette before cold season, tolerance to cold and specially better seed, oil and protein yield in comparison to other cultivars, can be cultivated as a suitable alternative for old and low yielding cultivars in Urumia region. In this research positive and significant correlations of harvest index, pod diameter and 1000 seeds weight with seed yield and negative and significant correlations of cold survival ability and seed oil content with seed yield, were observed.