摘要
本文从油松的形态变异调查入手,提出了油松自然类型划分的主要依据是冠幅大小与树皮厚度。经多方面分析比较,将灵空山地区的油松,划分为窄冠细皮油松和宽冠粗皮油松两种自然类型。并分类型进行了生长测定,使形态变并与生长特性联系起来,加以定量分析,揭示了油松形态变异与速生表现型的关系,肯定了两类型间之差异,证实了窄冠细皮油松确应为优良类型。为进一步研究油松种内遗传变异规律和建立油松良种繁育基地提供了依据。
Basod on the investigation of variation of morphology, this paper showed that main foindations which dividing the natural type were the size of tree crown and the thickness of bark. By comparision, natural type of Pinus tabulacformis in Lingkong Mountain was divided into two category, the morrow crown, thin bark and the wide crwon, thick bark. The growth of the tres has been measured according to the natural type. thus contacted the natural type with the growth characteristics. Further analysis of quantiative character indicated that the variation of morphology was related with phenotype of fast growth, and there is a difference between the two natural type. Pinus tabulacformis, norrow crown and thin bark, should be regarded as a goed type. It provided sicentific basis for studing regularity of genetic variation wihin varacty and builiding base which will be inproving varieties of Pinus tabulacfor mis.
关键词
油松
形态变异
自然类型
山西
Pinus tabulacformis
Variation of morphology
Natural type, Lingkong Mountain, Shanxi.
