| 火炬松种源幼龄材材性变异的研究 |
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| 引用本文： | 孙海菁,刘昭息.火炬松种源幼龄材材性变异的研究[J].林业科学研究,1997,10(1):46-53. |
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| 作者姓名： | 孙海菁 刘昭息 |
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| 作者单位： | 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亚热带林业研究所 助理研究员 浙江富阳 311400，浙江富阳 311400 |
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| 基金项目： | “八五”国家科技攻关“湿地松、火炬松建筑材、纸浆材良种选育”的内容之一 |
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| 摘 要： | 对在广西南宁、广东英德、江西分宜、浙江富阳４个试点的９年生火炬松源林的木密度、管胞长度、晚材率进行了测定分析，结果表明：４个试验点木材密度在种源间均表现出显著差异，管胞长度与晚材率差异不显著。
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| 关 键 词： | 火炬松 地理种源 幼龄材 材性变异 |
| 收稿时间： | 1995/11/22 0:00:00 |
Loblolly Pine Provenance Variation in Juvenile Wood Properties |
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| Sun Haijing and Liu Zhaoxi.Loblolly Pine Provenance Variation in Juvenile Wood Properties[J].Forest Research,1997,10(1):46-53. |
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| Authors: | Sun Haijing and Liu Zhaoxi |
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| Institution: | Sun Haijing;Liu Zhaoxi Assistant Professor. The Research Institute of Subtropical Forestry. CAF Fuyang. Zhejiang 311400 |
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| Abstract: | The wood basic density(BD), fiber length(FL) and latewood percentage(LP) of loblolly pine provenances were evaluated based on four 9-year-old provenance tests in Guangxi,Guangdong,Jiangxi and Zhejiang.The result showed that the provenance differ ence was significant for BD but not notable for FL and LP in every test location.The geographical variation patterns of wood properties of provenances were mainly two-way clinal ones influenced firstly by longitude and secondly by latitude.The BD of the western provenances were the highest,of the northern ones the next,and of south coast ones the lowest, the FL of the south coast provenances were the longest and of east coast ones the shortest, inland and northern provenances had the higher LP.The BD of loblolly pine were also different between test locations, decreasing from south to north.The provenance×test location effect for BD was small,most of the provenances displayed relatively higher stability.BD and LP were negatively correlated with the tree growth and yield traits,but FL was not correlated regularly with the tree growth traits,the three wood property traits also had complicated relationship with tree form traits. |
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| Keywords: | loblolly pine geographical provenance juvenile wood wood properties |
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