文献类型：期刊文献

中文题名：柚木种源生长和与材质有关特性的遗传变异及综合评价

英文题名：Genetic Variation and Comprehensive Evaluation in Growth and Wood Relevant Properties of Different Provenances of Tectona grandis

作者：赖猛[1] 梁坤南[1] 黄桂华[1] 林明平[1] 周再知[1] 马华明[1]

第一作者：赖猛

机构：[1]中国林业科学研究院热带林业研究所

年份：2011

卷号：24

期号：2

起止页码：234-238

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：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)

语种：中文

中文关键词：柚木;种源;材质;遗传变异;综合评价

外文关键词：Tectona grandis; provenance; wood properties; genetic variation; combination evaluation

分类号：S722.7

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源选择,可取得良好的效果;6个种源的树高、胸径、材积、枝下高、树皮厚度、边材年轮数、边材宽度、心材宽度、心材率、基本密度的广义遗传力分别为:0.601 6、0.539 2、0.586 8、0.686 5、0.796 3、0.543 4、0.670 0、0.723 0、0.473 7、0.937 3,说明柚木种源生长和与材质有关特性受中度或中上度遗传控制,通过一定的强度选择,能获得较高的遗传增益。本研究还从生长和与材质有关特性方面对6个种源进行综合评价,为柚木优良种源的选育提供依据。
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.