| 柚木种源生长和与材质有关特性的遗传变异及综合评价 |
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| 引用本文： | 赖猛,梁坤南,黄桂华,林明平,周再知,马华明.柚木种源生长和与材质有关特性的遗传变异及综合评价[J].林业科学研究,2011,24(2):234-238. |
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| 作者姓名： | 赖猛 梁坤南 黄桂华 林明平 周再知 马华明 |
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| 作者单位： | 中国林业科学研究院热带林业研究所,广东,广州,510520 |
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| 基金项目： | 国家"十一五"科技支撑项目"优质珍贵用材树种柚木、黄檀、福建柏新品种选育"(2006BAD01A1604) |
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| 摘 要： | 对海南岛乐东尖峰岭27年生柚木6个种源的生长及与材质有关特性进行测定与分析,结果表明:种源间树皮厚度、心材宽度、基本密度差异极显著,树高、材积、枝下高、边材宽度差异显著,而胸径、边材年轮数及心材率差异不显著,说明在种源水平上对柚木进行生长和与材质有关特性的改良具有较大的潜力,尤其进行木材生长性状、基本密度和心材宽度的种...
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| 关 键 词： | 柚木 种源 材质 遗传变异 综合评价 |
| 收稿时间： | 2010/7/15 0:00:00 |
Genetic Variation and Comprehensive Evaluation in Growth and Wood Relevant Properties of Different Provenances of Tectona grandis |
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| LAI Meng,LIANG Kun-nan,HUANG Gui-hu,LIN Ming-ping,ZHOU Zai-zhi and MA Hua-ming.Genetic Variation and Comprehensive Evaluation in Growth and Wood Relevant Properties of Different Provenances of Tectona grandis[J].Forest Research,2011,24(2):234-238. |
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| Authors: | LAI Meng LIANG Kun-nan HUANG Gui-hu LIN Ming-ping ZHOU Zai-zhi and MA Hua-ming |
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| Institution: | Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China;Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, Guangdong, China |
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| Abstract: | Research was carried out on the growth and wood relevant properties of six provenances of 27-year-old Tectona grandis in Ledong Country, Hainan Island. The results showed that there existed significant differences among these provenances in bark thickness, heartwood width, basic density as well as tree height, tree volume, height of fresh branch and sapwood width. For the DBH, the number sapwood rings and the heartwood content, there were not significant differences. It has great potentials to improve the growth and wood property of T. grandis in provenances level and the good results could be obtained in growth properties, basic density and sapwood width by provenance selection. The broad-sense heritabilities for tree height (0.601 6), tree girth (0.593 2), tree volume (0.586 8), height of fresh branch (0.686 5), bark thickness (0.796 3), sapwood number (0.543 4), sapwood width (0.670 0), heartwood width (0.723 0), heartwood content (0.473 7), and basic density (0.937 3) of the six provenances were calculated. The results indicated that growth and wood properties were controlled by moderate or high-moderate genetic heritability. So, high genetic gains could be obtained by inter-provenance selection with suitable intensity. In addition, the growth and wood relevant properties of the 6 provenances were comprehensively evaluated which could provides a base for the selection of T. grandis provenances. |
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| Keywords: | Tectona grandis provenance wood properties genetic variation combination evaluation |
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