| 粗枝云杉天然林优树的性状变异特征与选择标准划分 |
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| 引用本文： | 四川省粗枝云杉纸浆材协作组.粗枝云杉天然林优树的性状变异特征与选择标准划分[J].四川林业科技,2002,23(1):15-20. |
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| 作者姓名： | 四川省粗枝云杉纸浆材协作组 |
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| 作者单位： | 四川省林业科学研究院,四川,成都,610081 |
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| 基金项目： | 国家“九五”攻关项目“云杉纸浆材树种良种选育及培育技术研究”内容之一 (专题号 :95 0 11 0 1 0 6 ) |
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| 摘 要： | 利用天然林内75株初选优树的22个性状资料，分析了性状随树龄变异的特征。对目的性状的选择潜力给予了评价。确定出评价优树的14个性状。按表型复选标准，筛选出47株优树，初选优树准确率77．4％。提出粗枝云杉纸浆用材良种选育应按数量性状和材性性状两个不同层次进行分步改良。
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| 关 键 词： | 粗枝云杉 性状变异 选择标准 优树选择 纸浆材树种 |
| 文章编号： | 1003-5508(2002)01-0015-06 |
| 修稿时间： | 2001年2月14日 |
Variations in characters of plus trees in natural stands of picea asperata and definition of elected standards |
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| Sichuan Pulpwood Group in Picea asperata.Variations in characters of plus trees in natural stands of picea asperata and definition of elected standards[J].Journal of Sichuan Forestry Science and Technology,2002,23(1):15-20. |
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| Authors: | Sichuan Pulpwood Group in Picea asperata |
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| Abstract: | Twenty-two characters of 75 plus trees,which had been phenotypically selected in natural stands of Picea asperata Mast.were analysed on their variation with ages of the trees and potential for selecting plus trees was evaluated.For fourteen characters elected standards were defined,up to which were 47 trees that corresponded to a selection accruacy of 77.4%.It is suggested that Picea asperata Mast.managed as pulpwood stands should be stepwise improved on quantitative traits and wood characters. |
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| Keywords: | Plus tree Picea asperata Mast Variation in Characters Elected Standards |
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