| 油松地理变异的初步研究 |
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| 引用本文： | 徐化成,唐谦.油松地理变异的初步研究[J].北京林业大学学报,1984(2). |
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| 作者姓名： | 徐化成 唐谦 |
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| 作者单位： | 中国林业科学研究院林业研究所
(徐化成)，中国林业科学研究院林业研究所(唐谦) |
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| 摘 要： | 在由42个种源组成的全分布区种源试验中,测定了后代在发芽、物候、生长、形态和抗寒性等方面的21个特征,并据此阐明了油松地理变异的基本特点:(1)地理变异很显著,很普遍;(2)非连续性变异即生态型变异占突出位置,也存在着随机变异;(3)各种变异特征与地理气候因素的相关关系比较复杂。
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A PRELIMINARY STUDY ON GEOGRAPHIC VARIATION IN PINUS TABULAEFORMIS CARR. |
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| Abstract: | Pinus tabulaeformis Carr. seeds were collected from 42 sources distributed over the entire range. 21 Characteristics of those progenies, ie. The field germination,phenology, growth, morphology and cold hardiness and so on through two and a half years were assessed for seedlings raised in anursery located in Beijing. Preliminary analysis of data showed significant differences existed in different sources. Discontinuous ecological variations were dominant and random variation were existed in the range of local regions. There were complicated relationship between every morpho-phsiological Characteristics and five geographic climatic factors. |
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