| 不同种源火炬松和湿地松木材基本密度和管胞长度的变异 |
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| 引用本文： | 管宁,刘昭息,潘志刚.不同种源火炬松和湿地松木材基本密度和管胞长度的变异[J].林业科学研究,1993(3). |
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| 作者姓名： | 管宁 刘昭息 潘志刚 |
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| 作者单位： | 中国林业科学研究院木材工业研究所，中国林业科学研究院亚热带林业研究所，中国林业科学研究院林业研究所 北京 100091 副研究员 |
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| 基金项目： | 世界银行贷款国家造林项目 |
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| 摘 要： | 对1984年种植在广西和浙江的22个种源的火炬松及在浙江的8个种源的湿地松的木材密度和管胞长度进行了测定和分析。结果表明,两个树种的木材密度和管胞长度在种源间和种源内单株间均表现出显著差异,但株间差异较种源间差异显著得多。不同地区火炬松的差异较之同一地区不同种源间的差异更为显著。种源、地区的交互作用对火炬松的木材密度和管胞长度都表现出显著影响,种源和单株的交互作用对两个树种的木材密度也有显著影响。两个树种的木材材性与年轮宽度之间没有显著的相关关系。与马尾松和早期引种的火炬松、湿地松比较表明,用新引进的材料可选育出木材材质更为优良的品种。
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| 关 键 词： | 火炬松 湿地松 材性变异 木材密度 管胞长度 |
Variation of Wood Basic Density and Tracheid Length of Different Provenances of Loblolly and Slash Pines |
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| Guan Ning,Associate Professor.Variation of Wood Basic Density and Tracheid Length of Different Provenances of Loblolly and Slash Pines[J].Forest Research,1993(3). |
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| Authors: | Guan Ning Associate Professor |
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| Abstract: | Wood basic density and tracheid length of 22 loblolly pine provenances grown in Guangxi Province and Zhejiang Province and 8 slash pine provenances grown in Guangxi Province introduced from the U. S. and planted in 1984 were determined and analysed. There showed significant variations among different provenances and individual trees within the same provenances. However, the variation among trees was much more significant than that among provenances. Loblolly pine woods from different areas exhibited more significant variation than that from various provenances grown in the same area. The interaction of provenance x environment made significant effects on both basic density and trachcid length of loblolly pine, so did that of provenance x individual tree on basic density of the two pines. Generally no significant correlations were shown between growth rate and wood properties studied here. In the light of the comparison between the materials inrtroduced in 1984 and the references, the loblolly pine and slash pine introduced in earlier time and the local masson pine, it was found possible to obtain new materials of higher wood qualities from the newly introduced pines. |
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| Keywords: | loblolly pine slash pine wood variation basic density tracheid length |
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