The result showed that the successful rooting system was closely related to the concentration of macronutrient of MS medium, auxin concentration and developing state of the explant.

结果表明，中无机盐浓度、外源激水平、种以及外植体发育状况等对管嫩茎生根具有明显影响。

It is the factors affected plant regeneration in explant culture in Euphorbia pulchrrima willd to different explants or aurin or cytokinin or the combination of the auxin and cytokinin.

外植体型、植物生长、细胞分裂型及二者不同组合均对一品红在离体条件下植株再生具有影响。