当归营养苗端的解剖学观察

Anatomical structure of shoot apex on Angelica sinensis

对当归顶芽的解剖学观察表明 ,4月中旬至 5月上旬的顶芽尚处于营养生长阶段 ,采取降低抽苔率的措施应在 5月中旬到 6月初 .幼苗移栽时分别施以氮肥和磷肥 ,生长到 5月 10日 ,就其顶芽结构来说 。

Developing anatomical structure of terminal buds of Angelica sinensis were observed from April 12 to May 10.The result shows that the terminal buds are in vegetative growth during this phrase.To reduce the rate of flowering buds,the measures should be taken from middle ten days of May to early in June.