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| 火炬松第三代半同胞家系与火炬松×加勒比松全同胞家 系遗传变异分析 |
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宁华珙,王 博,陆结芳,刘天颐,王金榜,黄少伟
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英德市林业科学研究所 广东英德,华南农业大学林学与风景园林学院,华南农业大学林学与风景园林学院,华南农业大学林学与风景园林学院,英德市林业科学研究所 广东英德,华南农业大学林学与风景园林学院
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| 摘要: |
| 试验以火炬松（Pinus taeda）第三代半同胞家系及火加松（火炬松 × 加勒比松 P. taeda ×
P.caribaea）全同胞家系作为研究对象，参试家系共 20 个，其中 9 个为火炬松第三代半同胞家系 , 11 个
为火加松全同胞家系，另以来自台山市红岭种子园改良代湿地松（P. elliottii）种子园混合种子为对照
（CK1），分析了 2 a 和 5 a 生长性状差异。结果表明：（1）火炬松第三代半同胞家系及火加松全同胞家系
的各生长性状与作为对照的湿地松相比均具有明显优势；（2）火炬松第三代半同胞家系及火加松全同胞
家系各项生长性状之间差异不显著；（3）以 5 a 平均材积为指标，对 20 个家系进行了优良家系选择，入
选家系分别为 09-15、 09-9、 44-12-5 和 26- Ⅲ -4。 |
| 关键词: 火炬松 火加松 遗传变异 优良家系 |
| DOI： |
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| 基金项目:广东省林业科技创新专项(2011KJCX013-02)(2012KJCX009-01) |
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| Genetic Variance of the Third Generation of Pinus taeda Half-sib Families and P. taeda × P. caribaea Hybrid |
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Ning Huagong,Wang Bo,Lu Jiefang,Liu Tianyi,Wang Jinbang and Huang Shaowei
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Yingde Institute of Foresty,College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Yingde Institute of Foresty,College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou
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| Abstract: |
| In this study,the third generation half-sib families of the loblolly pine (Pinus taeda) and full-sib
families of P. taeda× P. caribaea were selected as the research object. Nine third generation open-pollinated
families of loblolly pine and eleven hybrid families of loblolly pine by P.caribaea were studied for growth traits
at the age of 2 years and 5 years. Mixed seed from Taishan P. elliottii improved seed orchard were used as control
(CK1). The main results were as follows: (1) Compared with CK1, both hybrid pine families and P. taeda third
generation half-sib families held advantage in growth. (2) No significant difference was found between hybrid
pine and third generation half-sib families of P. taeda. (3) Superior families were selected based on 5-year-old
means single tree volume, including 09-15, 09-9 and 44-12-5, 26- Ⅲ -4. |
| Key words: Pinus taeda P. taeda×P. caribaea genetic variation superior families |
