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| 杉木2代种子园半同胞子代测定林生长分析 |
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赖旭恩,王润辉,胡德活,林军,李彭生,梁庆
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乐昌市龙山林场 广东乐昌,广东省林业科学研究院 广州,广东省林业科学研究院 广州,乐昌市龙山林场 广东乐昌,乐昌市龙山林场 广东乐昌,乐昌市龙山林场 广东乐昌
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| 摘要: |
| 对2001年营建的杉木二代种子园内22个半同胞家系6 a和8 a生林分进行调查分析，结果表明，参试家系的树高、胸径和材积有显著或极显著差异，但随着年龄增长差异程度有所降低。根据参试家系8 a生的材积平均值选出4个优良家系，材积现实增益达10.29%~12.41%。 |
| 关键词: 杉木，半同胞家系，子代测 |
| DOI： |
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| 基金项目:“十二五”农村领域国家科技计划课题（2012BAD01B020109）,广东省林业科技创新专项（2012KJCX010-01）。 |
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| Growth Analyses of Half-sib Families from 2th Generation Seed Orchard of Cunninghamia lanceolata |
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Lai Xu’en,Wang Runhui,Hu Dehuo,Lin Jun,Li Pengsheng and Liang Qing
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Guangdong Academy of Forest,Guangzhou,Guangdong Academy of Forest,Guangzhou,Longshan forest farm,Shaoguan,Longshan forest farm,Shaoguan,Longshan forest farm,Shaoguan
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| Abstract: |
| Data collected in 6-year-old and 8-year-old stands of half-sib family of Cunninghamia lanceolata established in 2001 were analyzed. The results revealed that there were significant or highly significant differences among families in height, diameter at breast height and volume. Duncan Multiple Test showed that the difference among families decreased gradually with tree ages. Based on volume of families in 8-year-old, 4 superior families were selected, and the realized genetic gains were 10.29%~12.41%. |
| Key words: Cunninghamia lanceolata, half-sib family, progeny test |
