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采用４种不同方法，对甘蓝型油菜（ＣＭＳ）恢复系进行品质和性状改良。结果表明，杂种一代×品种间改良的恢复系生长势强、配合力高；利用多亲本复合杂交，子代的选择广泛，选育优质恢复系容易；而恢复系×恢复系、恢复系×品种只改良了恢复系的单一性状，配合力一般。
Four different methods were used to improve the quality and trait of restorer line of Brassica napus. The results showed that the improved restorer line between hybrid × breeds had strong growth and high combining ability. Using multiple parents and crossbred hybrids, the selection of offspring was extensive and the selection of high quality restorer lines was easy. The restorer lines × restorer lines and restorer lines × cultivars Only the single trait of restorer line has been improved, and the combining ability is normal.