甘蓝(卷心菜)同其它蔬菜一样,利用杂种优势是提高产量,改善品质,成熟一致,增强抗逆性的有效途径。川沙县严桥公社繁殖了1.3亩自交不亲和系原种,去年利用黑叶小平头搞了五个不同的杂交组合,收到杂种种子8斤多,秋季试种结果,比黑叶小平头原种增产三成以上,最高的增产109.6%。若采用两个品种的自然杂交,因杂交率不高,往往影响杂种优势的表现和经济性状的一致性,但人工去雄授粉配制的杂种一代种子,由于花朵小,杂交一朵花只能得到几粒种子,在 Cabbage (cabbage) Like other vegetables, the use of heterosis is an effective way to increase yield, improve quality, be consistent with maturity, and increase resistance. Chuansha County Yanqiao commune breeding 1.3 acres of self-incompatibility of the original species, the last year the use of black leaves Xiaoping Tou engage in five different hybrid combinations, received more than 8 pounds of hybrid seeds, the results of the autumn trial, than the black leaves small Flat-headed species increased by more than three percent, the highest yield 109.6%. If the natural hybridization of two varieties, because of the low rate of hybridization, often affect the performance of heterosis and economic traits consistent, but artificial toxoon hybrid seed preparation of hybrid generation, because the flower is small, only one hybrid flower A few seeds, in