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1 前言马尾松为我国南方特有的用材树种,它生长快、适应性强、用途广,在林业建设上占有重要地位。但是,长期以来对马尾松树种只着眼于资源的利用,忽视对它的性状改良和良种选育,加之粗放经营,致使种质资源遭到巨大损失,直到“五五”期间,马尾松良种选育技术被列入国家重点科技攻关项目,由政府和地方共同出巨资相继在四川、贵州、广东、广西、湖南、湖北、福建、浙江等省(区)营建了各种类型的马尾松良种生产基地。截止1990年统计,已建成优树收集区(采穗圃)100多 hm~2,无性系初级种
1 Introduction Masson pine timber species unique to southern China, its fast growth, adaptability, wide use, occupies an important position in the construction of forestry. However, for a long time, Pinus massoniana has only focused on the utilization of resources, neglecting the improvement of its traits and breeding of elite seeds, combined with extensive management, resulting in huge losses of germplasm resources until the massonin Education has been included in the national key scientific and technological projects, the government and local governments have made huge sums of money successively in Sichuan, Guizhou, Guangdong, Guangxi, Hunan, Hubei, Fujian, Zhejiang and other provinces (districts) to build various types of masson pine Production base. As of 1990 statistics, has built a superior tree collection area (mining garden) more than 100 hm ~ 2, clonal primary species