| 闽楠优良地理种源选择及其子代林遗传增益分析 |
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| 引用本文： | 罗宁.闽楠优良地理种源选择及其子代林遗传增益分析[J].云南林业科技,2014(5):19-23. |
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| 作者姓名： | 罗宁 |
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| 作者单位： | 福建明溪国有林场,福建明溪365200 |
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| 基金项目： | 中央财政林业科技推广示范项目《楠木珍稀用材林丰产培育技术与示范》部分内容（[2012]7号）。 |
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| 摘 要： | 收集福建和江西闽楠自然分布区20个地理种源，在福建明溪县进行其地理种源试验。2013年11月，调查9年生闽楠幼林的生长量指标，以选择闽楠的优良地理种源，进行其子代林遗传增益分析，结果表明，闽楠的树高、地径、冠幅等指标存在显著性差异，具有较高的广义遗传力和变异系数；树高、地径、冠幅等性状间存在显著性正相关。综合树高、地径、冠幅等3个性状，利用多性状综合评价方法决选出：福建明溪为最优种源，福建永安、福建浦城与江西上饶为优良地理种源；4个优良地理种源的平均遗传增益，树高为23.73％，地径为27.77％，冠幅为26.11％。
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| 关 键 词： | 闽楠 地理种源 遗传变异 广义遗传力 种源选择 |
Selection of Excellent Geographical Provenances and Analysis of Progeny Forest Genetic Gain of Phoebe bournei |
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| LUO Ning.Selection of Excellent Geographical Provenances and Analysis of Progeny Forest Genetic Gain of Phoebe bournei[J].Yunnan Forestry Science and Technology,2014(5):19-23. |
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| Authors: | LUO Ning |
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| Institution: | LUO Ning ( Mingxi State-owned Forest Farm, Mingxi Fujian 365200, P. R. China) |
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| Abstract: | Based on the collection of 20 geography provenances from Fujian and Jiangxi , the test of geography provenances of Phoebe bournei was conducted in Mingxi County of Fujian .In addion , for selecting excellent geo-graphical provenances and conducting analysis on progeny forest genetic gain , field survey on growth index of 9-year-old young forest was also made . The result showed that there was significant difference among tree height , ground diameter , crown width , there were high broad heritability and the genetic variation coefficient among these 3 traits.There were significant positive relation among tree height , ground diameter , and crown width .The result of comprehensive evaluation on multiple characters showed that Fujian Mingxi was the best provenance , while Fu-jian Yongan , Fujian Pucheng , Jiangxi Shangrao were excellent geographical provenance .The average genetic gain of the 4 selected superior geographical provenances were 23.73%from tree height , 27.77% from ground diame-ter, 26.11 % from crown width . |
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| Keywords: | Phoebe bournei geographical provenance genetic variations broad heritability provenance selec-tion |
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