ارزیابی والدین در بلوک های دورگ گیری و توسعه جمعیت های متنوع مبدا با استفاده از روش دورگ گیری برای اصلاح خصوصیات کمی و کیفی کلزا برای شرایط دیم.

To get rapeseeds varieties with high oil and seed yield, earliness, cold resistance for rain fed conditions, this study carried out with 10 rapeseed varieties that were crossed in crossing blocks in Sararood Agricultural Research Station. The crosses were done among varieties by hand method. Also the plots were irrigated to avoid drought stress. Each variety was planted in 3 rows with 2 meters length, distance row to row 50 centimeters and two dates of sowing with 15 days difference. In growing season and after harvesting traits such as days to flowering, days to maturity, plant height, sub branch, pod per plant, seed per pod, thousand of kernel weight, oil%, oil and seed yield (Kg/Plot) recorded. The results showed that seed per head and thousand of kernel weight traits can be considered as selective indices for obtaining high seed yield varieties Also, earliness varieties are more suitable than lateness. Because, they escape dry at the end of season. Then we should transfer earliness trait to high seed yield varieties in order to gain this particular.

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منداب ، ارقام ، دورگ گیری ، ویژگی های زراعی ، عملکرد زراعی ، زودرسی (گیاه)