苦丁茶树扦插繁殖的研究

采用不同种类和不同浓度的植物生长调节剂、不同苗段、插穗不同节数以及插穗不同剪叶量等几种处理方法，对苦丁茶树插穗生根的影响进行了试验，结果表明：在试验的几种促根药剂中，以浓度２００ｍｇ／Ｌ的ＮＡＡ对苦丁茶树插穗生根的效果最佳；在同样条件下，二段苗的发根能力是强；随着插穗节数的增多，其发根能力就增强，但综合考虑到成活率、扦插苗的长势、繁殖系数以及经济效益等因素，笔者认为以每插穗具两个节为宜；在相同条件下，每张叶剪去１／３再插穗的，其发根能力最强．

Study on the Cutting Propagation of Kuding Tea Tree

This paper deals with the effects of the various factors on the cutting propagation of Kuding tea tree(llex latifolia Thumb.) ,including the kinds and concentration of plant growth regulators,the ordi- nal number of the stock segment,the number of nodes,as well as the amount of leaf pruned on the cut- ting.The experimental results show as follows: 1)Of all the plant growth regulators,200 mg/L NAA exerts a optimum effect on the root emergence of the cuttings of Kuding tea tree;2) Under the same condition,the second segment of Kuding tea stock shows the strongest rooting ability;3) The rooting ability of the cutting increases with the number of the nodes,Taking the survial percentage,the growth performance of the cutting stocks,the propagation coef- ficient and the economic benefit into comprehensive consideration,the auther thinks that two-node seg- ment is more suitabel for each cutting;4) Under the same condition,the rooting ability of the cutting is the strongest if1/3 of each leaf are cut.