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本文论述世界柚木基因资源的特点及其在我国的发展前途和遗传改良途径。柚木基因资源分成三个互不连续的天然分布区,生态背景十分复杂。种内包括种源间的变异多种多样。印度被视为世界柚木的“多变异中心”而受人重视。我国目前拥有的柚木种源,与辽阔的宜林地很不相称,是发展柚木人工林的障碍之一。世界柚木的基因库,可为我国柚木人工林的发展提供丰富的基因资源。为此柚木遗传改良途径应在地理种源试验或类型划分的基础上,进行混合与单株并行选择,并与无性系育种结合起来。
This article discusses the characteristics of the world teak genetic resources and its development in China and ways of genetic improvement. Teak genetic resources are divided into three non-continuous natural distribution area, the ecological background is very complicated. There are many variations among provenances, including among species. India is regarded as the “center of multiple variability” of teak in the world and valued. The teak provenance now owned by our country is not commensurate with the vast expanse of forest land, and is one of the obstacles to the development of the teak plantation. The gene pool of teak in the world can provide rich genetic resources for the development of teak plantation in China. To this end genetic improvement of teak pathways should be based on geographical provenance test or type of division, mixed and single plant parallel selection, and combined with clonal breeding.