以花椰菜的花托、花序轴和未受精子房为外植体 ,诱导出不定芽 ,并进行继代增殖培养 ,在继代增殖培养基上每隔 2 5～ 30天 ,不定芽可以增殖 5～ 6倍 ,在不加激素的 1/2MS培养基上 ,试管苗生根率达到 98%以上 ,移栽成活率达到 95%以上。经观察 ,花托和未受精子房再生植株是由外植体直接分化而来 ,不经过愈伤组织阶段 ,这样可避免不良变异 ,保持材料的遗传稳定性 Adventitious buds were induced by the torus, the inflorescence axis and the unfertilized ovary of cauliflower, and the adventitious buds were induced and subcultured. The adventitious buds could proliferate 5 ~ 6 times, without hormone 1 / 2MS medium, rooting rate of test tube seedlings reached more than 98%, transplanted survival rate of 95% or more. It has been observed that regenerated plants of torpedoes and unfertilized houses are directly differentiated by explants and do not pass through the callus stage, thus avoiding undesirable variations and maintaining the genetic stability of the material