结果提示，生长素极性运输活性对不定根形成起着重要作用。

The result shows that auxin polar transport plays an important role in adventitious root formation.

不定根和地下茎的周皮发达，栓质化程度高；

Adventitious roots and rhizome have much periderm, the suppository level is high;

随着愈伤组织和不定根的出现，多数营养物质含量呈下降趋势。

Most of the content of nutritive substance declined with the emergence of callusing and rooting.

生长素类物质处理插穗促进不定根形成，与诱导乙烯释放有关。

The promotion of adventitious root formation by auxin was proven to be related to ethylene releasing.

从横切面上观察到，不定根原基起源于髓射线与维管形成层交叉的部位。

From cross sections of stems-cuttings, a primordium of adventitious roots originates from the cross region of pith rays and vascular cambium.