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一、前言马尾松(Pinus massoniana Lamb.)是我国南方主要造林先锋树种。它早期生长发育较慢,用实生苗繁育良种需要较长的时间。为了加速发展林木良种事业,采用无性系嫁接方法建立马尾松种子园,既能保持母树的优良性状,提早开花结实,又可矮化树冠,便于采种,这是实现马尾松造林良种化的重要手段。马尾松采用无性繁殖是比较困难的。过去,广东韶关地区林科所与国营英德林场,用老枝嫁接成活率低,一般在20—30％。为了提高嫁接成活率,我们从1978年开始研究,经过4年的试验,取得马尾松嫩枝切接技术科研成果。马尾松嫩枝嫁接1045株,平均成活率
I. Introduction Pinus massoniana (Pinus massoniana Lamb.) Is a major afforestation species in southern China. It early growth and development is slow, with seedlings breeding elite takes a long time. In order to speed up the development of forest tree planting, the establishment of Masson pine seed orchard by clonal grafting can not only maintain the good traits of the parent tree, but also accelerate the growth of the masson pine tree. . Asexual reproduction of Pinus massoniana is more difficult. In the past, the forest branch in Shaoguan, Guangdong Province, and the state-run Yingdelin Farm had a low survival rate of 20-50% with old branches. In order to improve the survival rate of grafting, we began to study from 1978, after 4 years of experiment, access to Masson pine shoot cutting technology research results. Masson pine shoots grafted 1045, the average survival rate