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马尾松[Pinus massoniana Lamb]分布广,分布区内气候、土壤等生态条件差异极为明显,受长期自然选择结果,不同种源形成了在形态特征、生物学习性和生产力等方面的一些遗传上的差异。选择适应的种源,是良种选育的基础,也是短期內快速提高林木产量和质量的重要途径。为此,中国林科院亚林所组织全国进行马尾松种源试验,现将我省1980年苗期阶段试验材料整理如下:
Pinus massoniana Lamb is widely distributed and the differences in climatic conditions, soil and other ecological conditions in the distribution area are extremely obvious. Due to long-term natural selection results, some provenances in morphological characteristics, biological habits and productivity have been formed by different provenances difference. The selection of adaptive provenances is the basis for seed selection and breeding and an important way to rapidly increase the yield and quality of forest trees in the short term. To this end, the Chinese Academy of Forestry Yulin organized nationwide masson pine provenance test, now in our province in 1980 seedling stage test materials are organized as follows: