| 华山松混合授粉子代测定效果分析 |
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| 引用本文： | 耿继斌.华山松混合授粉子代测定效果分析[J].贵州林业科技,2001,29(1):24-27. |
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| 作者姓名： | 耿继斌 |
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| 作者单位： | 威宁县林业局!553100 |
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| 摘 要： | 对威宁华山松良种基地的混合授粉子代林的调查结果表明：约有50％的家系树高大于当地生产种，2／3的家系地径大于生产种，树高和地径的遗传力都很高，分别为92．7％和76．69％，遗传增益达到65．82％和26．44％。家系遗传力比单株遗传力高，树高遗传力比地径高。家系筛选以树高为主，有8个家系入选，入选率为24．24％，将入选的优良家系营建高世代种子园，就会获得更高的遗传增益。
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| 关 键 词： | 华山松 混合授粉 家系 遗传力 遗传增益 育种植 子代测定 |
| 修稿时间： | 2000年9月19日 |
Analysis on effects of pollycross filial generation for Pinus armandii Franch |
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| Geng Jibing.Analysis on effects of pollycross filial generation for Pinus armandii Franch[J].Guizhou Forestry Science and Technology,2001,29(1):24-27. |
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| Authors: | Geng Jibing |
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| Institution: | Forestry bureau of Wenning county |
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| Abstract: | The investigation result of pollycross test for filial generation in Weining elite base tells that:the height of 50% families higher than native species;the diameter at the lowest stem of two thirds families wider than production species.the inheritance of height and diameter at the lowest stem are good,they are 92.7% and 76.69%;profit of inheritance are 65.8%and 26.44%.inheritance of families is higher than single;inhertance of height higher than diameter at the lowest stem;height as the main standard for selection of families,there are 8 families selected,selection rating is 24.24%.the higher benefit of inheritance will be gotten by construction orchard with the selected and elite families |
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| Keywords: | Pinus armandii Franch family inheritance profit inheritance |
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