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林木无性繁殖的主要目的是为了缩短育种周期,使良种产生的增益更直接和迅速,提高育种经济效率。近年来召开了几次大型国际会议,专门讨论了树木无性繁殖的方法、进展和遗传应用等问题,无非是为了扩大良种选育的途径。为了解决落叶松无性繁殖生根困难的问题,美国、日本、英国等国家都采用了嫩枝扦插,取得了新的进展,国内也取得了日本落叶松、华北落叶松扦插的较好成绩。苏联鞑靼森林试验站针对红松嫁接位置过高(0.5—1.5m),
The main purpose of asexual reproduction of trees is to shorten the breeding cycle so as to make the gain of improved varieties more direct and rapid and improve the economic efficiency of breeding. In recent years, several large-scale international conferences have been held to discuss the methods, progress and genetic applications of asexual reproduction of trees, with the aim of expanding the breeding of elite varieties. In order to solve the problem of larch asexual reproduction difficult rooting, the United States, Japan, Britain and other countries have adopted the softwood cuttings, made new progress, the domestic also made the Japanese larch, Larix principis-rupprechtii cuttings better results. Soviet Tatar forest test station grafted on the location of Korean pine too high (0.5-1.5m)