| 25年生马尾松优树子代生产力评价及家系选择 |
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| 引用本文： | 吴清金.25年生马尾松优树子代生产力评价及家系选择[J].林业科技开发,2012(1):73-76. |
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| 作者姓名： | 吴清金 |
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| 作者单位： | 福建省仙游溪口国有林场 |
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| 基金项目： | 福建省林木种苗科技攻关三期项目“福建省马尾松良种选育及应用” |
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| 摘 要： | 对25年生马尾松优树子代测定林调查分析,结果表明马尾松子代树高、胸径、材积在家系间存在显著的遗传变异,其家系遗传力分别为0.428、0.565和0.610。利用以树高、胸径、材积构建的指数选择方程从参试家系中选择出20个速生优良家系,平均材积遗传增益为26.0%。从入选的优良家系中选择出100株优良单株,平均材积比群体均值大122.21%。
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| 关 键 词： | 马尾松 优树子代 生产力指数 家系选择 |
Productivity evaluation and family selection of 25-year old plus tree progeny in Pinus massoniana |
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| WU Qing-jin.Productivity evaluation and family selection of 25-year old plus tree progeny in Pinus massoniana[J].China Forestry Science and Technology,2012(1):73-76. |
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| Authors: | WU Qing-jin |
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| Institution: | WU Qing-jin National Forestry Farm of Xikou,Xianyou County of Fujian Province,Xianyou 351265,Fujian,China |
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| Abstract: | An investigation and analysis on a 25-year old progeny test stand of Pinus massoniana showed that there were significant genetic variations in height,diameter at breast height(DBH) and volume among different families.The family heritability of height,DHB and volume was 0.428,0.565 and 0.610,respectively.Using an index selection equation built with height,DHB and volume,20 superior families and 100 individuals were selected.Average family genetic gain of volume was 26.0%,and average volume of individuals was 122.21% larger than that of whole stand. |
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| Keywords: | Pinus massoniana plus trees progeny PQI family selection |
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