紫花含笑嫁接繁殖技术研究

Study on Grafting Propagation Techniques of Michelia crassipes

选择深山含笑、野含笑的1年生苗为紫花含笑嫁接砧木,以多年生乐昌含笑为大树换冠砧木,进行紫花含笑不同砧木嫁接试验,并探索总结紫花含笑嫁接繁殖技术。结果表明:深山含笑、野含笑两种砧木在嫁接成苗率、1年生嫁接苗高度及径高比值均无明显差异;乐昌含笑大树换冠,单株成活率达94%,表明以上3个树种均是嫁接紫花含笑较好的砧木树种。2月下旬至3月中旬是嫁接紫花含笑的适宜时期,采用单芽枝切接方法,简单易行,效果较好。

1-year-old seedlings of Michelia maudiae and M.skinneriana were selected for M.crassipes’ srootstocks.Taking perennial M.chapensis for rootstock trees change crown,grafting experiment with different srootstocks of M.crassipes was made.And grafting propagation techniques of M.crassipes were explored summed.The results showed that：two rootstocks of M.Maudiae and M.skinneriana have no significant differences in grafted seedling rate,annual grafting seedling height and diameter high ratio;individual plant survival rate of M.chapensis with large trees change crown was up to 94%.That showed these three species were the the better rootstock species for M.crassipes grafting.Later February to mid-March was the suitable period of M.crassipes grafting.Single bud sticks cutting grafting method is simple and better.