甘蓝型油菜细胞质雄性不育三系及杂种一代的应用推广 ,对提高我国油菜生产水平起到了积极作用。杂交油菜超亲优势为 33% ,平均优势为 39%。杂交油菜比同类型常规品种增产 30 %。由于甘蓝型油菜细胞质雄性不育系属低温敏感型 ,在低温条件下分化的雄蕊易形成微粉 ,自交结实 ,产生 The promotion and application of cytoplasmic male sterile three-line and hybrid generations in Brassica napus played a positive role in raising the level of rape production in China. Super hybrid advantage rape 33%, the average advantage of 39%. Hybrid rapeseed than the same type of conventional varieties increased by 30%. Because the Brassica napus cytoplasmic male sterile line is a low temperature-sensitive type, the stamens that differentiate under low temperature are easy to form fine powder,