| 兴安落叶松优良家系选择及遗传增益 |
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| 引用本文： | 商永亮,张淑华,陈志成,王国义.兴安落叶松优良家系选择及遗传增益[J].东北林业大学学报,2010,38(7). |
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| 作者姓名： | 商永亮 张淑华 陈志成 王国义 |
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| 作者单位： | 黑龙江省带岭林业科学研究所,带岭,153106;黑龙江省带岭林业科学研究所,带岭,153106;黑龙江省带岭林业科学研究所,带岭,153106;黑龙江省带岭林业科学研究所,带岭,153106 |
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| 基金项目： | 黑龙江省重大科技攻关项目 |
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| 摘 要： | 采用遗传力和遗传增益估算方法,对兴安落叶松子代测定林(25年生)37个家系的树高、胸径、材积进行了分析,结果表明:不同家系间树高、胸径、材积差异显著。选择出树高、胸径大于群体平均值5%以上、材积大于群体平均值15%以上的优良家系为4个;群体中35号为最优家系,其树高大于群体平均值6%,胸径大于群体平均值8%,材积大于群体平均值22%。树高、胸径、材积遗传力分别为0.07、0.26、0.41。若从37个家系中选出2个最好的家系进行有性繁殖后代,生长25a,树高能获得0.5%的遗传增益;胸径能获得2.5%的遗传增益;材积能获得8.7%的遗传增益。
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| 关 键 词： | 兴安落叶松 优良家系 选择 遗传增益 |
Fine Family Selection and Genetic Gain of Larix gmelinii |
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| Shang Yongliang,Zhang Shuhua,Chen Zhicheng,Wang Guoyi.Fine Family Selection and Genetic Gain of Larix gmelinii[J].Journal of Northeast Forestry University,2010,38(7). |
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| Authors: | Shang Yongliang Zhang Shuhua Chen Zhicheng Wang Guoyi |
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| Institution: | Shang Yongliang,Zhang Shuhua,Chen Zhicheng,Wang Guoyi(Dailing Forestry Research Institute of Heilongjiang Province,Dailing 153106,P. R. China) |
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| Abstract: | Tree height,diameter at breast height,and volume of 37 families in a progeny test forest of Larix gmelinii (25-year-old) were analysed according to the calculation methods of heritability and genetic gain. Significant differences were observed in tree height,diameter at breast height,and volume between different families. According to the selective standard for superior families that the tree height and diameter at breast height exceed 5 percent and the volume 15 percent of the population mean,four superior... |
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| Keywords: | Larix gmelinii Fine families Selection Genetic gains |
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