At the same time, the result showed that the cotyledon and the hypocotyle which are the nearer embryo, the shorter period is the inducement and the plant regeneration rate is the best.

• 同时还发现分区子叶和分段下胚轴都是越接近胚芽生长点的部位用作外植体，其诱导出芽的时间短，并且能很好地分化再生成苗。