由于甘蓝的繁殖系数大,只须在选留种时,能精选出少量的最优种株,便可使良种扩大栽培,提高商品菜的产量和质量。但如能对特别最优种株,采用剥芽扦插留种来繁殖原种,则更可达到加速原种繁殖系数和确保其种性的目的。今简介其方法和优点如下: Due to the large breeding coefficient of cabbage, only when selecting the species to be selected, a small amount of the best strains can be selected so as to expand the cultivation of the improved varieties and improve the yield and quality of the commercial vegetables. However, if the best special strains of special use of stripping cuttings to breed original breeds, then you can achieve the purpose of accelerating breed coefficient and ensure their species. This brief introduction of its methods and advantages are as follows: