器官培养(组织培养)出的小苗,从器官接种到小苗移栽前,一直是在无菌的培养基内培育,利用人工控制温、湿度条件,培养出来的小苗比较柔嫩,根系较弱,取出后直接移栽到田间,由于生长条件突然变化,秧苗还不能适应,会造成小苗大量死亡或大缓苗现象,导致试验和生产效果不好,失去了试管苗无性快速繁殖的特点。因此,在 Organ culture (tissue culture) out of the seedlings, organ transplantation from seedlings before transplanting, has been cultivated in sterile medium, the use of artificial temperature and humidity control conditions, the cultivated seedlings more tender, weaker roots, remove After transplanting directly to the field, due to sudden changes in growth conditions, the seedlings can not adapt, will cause a large number of seedling death or large Huanmiao phenomenon, resulting in poor test and production, lost the characteristics of asexual rapid propagation of plantlets. Thus, in