“京丰一号”甘蓝是北京市农科院蔬菜所选育成功的自交不亲和系单交种。它的母本和父本都是自交不亲和系,母本是“黑叶小平头”(7221—3—3),父本是“黄苗”(7224—5—3),正反交种子都可以用于生产。“京丰一号”甘蓝属中熟杂交种,6～7片叶时定植,定植后80～85天结球紧实,一般亩产12,000 “Beijing Feng 1” cabbage is the Beijing Academy of Agricultural Sciences successful breeding of vegetables self-incompatible line of single species. Its mother and paternal are self-incompatible, the female parent is “black leaf Xiaoping” (7221-3-3), the male parent is “yellow seedlings” (7224-5-3), positive and negative Seeds can be used for production. “Beijing Feng Feng” cabbage is a medium-maturing hybrids, 6 to 7 leaves when colonization, 80 to 85 days after planting the ball tight, the general mu produce 12,000