青海省新型甘蓝型油菜品系主要性状研究

对甘蓝型油菜（039、E144）与青藏高原白菜型油菜浩油11种间杂交获得的66个新型甘蓝型油菜品系的生育期、产量性状、含油量、脂肪酸组成、抗虫性和对波里马细胞质雄，陛不育的恢复性等性状进行了研究。结果表明：66个品系中出现了具有以下特征的新型甘蓝型油菜品系，即生育期极短（西宁地区100d以内）、产量性状优于甘蓝型亲本、含油量高于甘蓝型亲本、油酸含量大于70％、饱和脂肪酸含量小于5％、能够完全恢复波里马细胞质雄性不育、抗虫性（茎象甲）强于甘蓝型亲本。这些品系将为今后甘蓝型油菜育种提供优良的亲本资源。

The research on basic characteristics of new-type B.napus L.lines in Qinghai

The 66 new-type B.napus lines were created by using the method of interspecific cross between early mature B.napus varieties(039,E144) and especially early mature B.campestris Haoyou 11 of Qinghai-Tibet plateau.The growth period,yield traits,oil content,constituent of fatty acid,rape stem weevil resistance and the restore lines of Polima cms in these new-ltype B.napus lines were studied in this paper.The results indicated that there were more excellent characters in the new-type B.napus lines than that in the B.napus female parents:growth period less than 100 days in Xining,oleic acid content above 70%,saturated fatty acid content less than 5%,better yield traits,higher oil content,stronger resistance to rape stem weevil than that of the B.napus female parent and the restore lines of Polima cms obtained from the new-type B.napus.lines.The new-type B.napus lines will be provided for breeding of B.napus as new germplasm resources.