| 柳杉种子园亲本遗传变异规律与选择 |
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| 引用本文： | 欧阳磊.柳杉种子园亲本遗传变异规律与选择[J].中南林业科技大学学报,2010,30(3). |
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| 作者姓名： | 欧阳磊 |
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| 作者单位： | 福建省林业科学研究院,国家林业局南方山地用材林培育重点实验室,福建,福州,350012 |
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| 基金项目： | 福建省科技厅农业科技重点项目 |
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| 摘 要： | 对32年生柳杉种子园亲本生长、木材品质和形质等性状的遗传变异规律和相关性进行了研究。结果表明:生长性状在种源和无性系水平上存在明显差异,木材品质、形质性状中除树皮率在种源和无性系水平上存在明显差异外,其余性状差异均不明显;生长性状在早期和成熟期间有一定相关性,其中无性系水平上的相关性更强,生长性状与木材品质、形状性状间相关性没有明显的规律。通过综合比较,选择出柳杉优良亲本18个,32年生时单株材积平均值为0.898 09 m3,木材基本密度平均值为0.313 11 g/m3,木材心材比率平均值为58.03%,偏心率平均值为0.02%,结实均为中等偏上。这些优良亲本可用于柳杉杂交亲本或高世代种子园建园材料。
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| 关 键 词： | 林木遗传育种 柳杉 种子园亲本 遗传变异 相关性 选择 |
Genetic variation and selection of Cryptomehia fortunei seed orchard parents |
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| OUYANG Lei.Genetic variation and selection of Cryptomehia fortunei seed orchard parents[J].Journal of Central South Forestry University,2010,30(3). |
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| Authors: | OUYANG Lei |
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| Institution: | OUYANG Lei(Southern Mountain Timber Forest Cultivation Laboratory of the State Forestry Adminstration,Fujian Academy of Forestry,Fuzhou 350012,Fujian,China) |
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| Abstract: | The relevances and genetic variation of the growth traits,wood quality and form auality traits of 32 years old Cryptomeria fortunei seed orchard parents were studied in this paper.The results are as follows: the differences of growth traits among the provenances and clones are very significant,the differences of bark rate among the provenances and clones are significant,and the other wood quality traits were not significant.The correlations of growth traits at an early stage and mature are some significant,... |
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| Keywords: | forest tree heredity breeding Cryptomehia fortunei seed orchard parents genetic variation correlation selection |
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