| 三倍体毛白杨新无性系木材干缩性的遗传分析 |
| |
| 引用本文： | 邢新婷,张志毅,张文杰.三倍体毛白杨新无性系木材干缩性的遗传分析[J].林业科学,2004,40(1):137-141. |
| |
| 作者姓名： | 邢新婷 张志毅 张文杰 |
| |
| 作者单位： | 1. 北京林业大学毛白杨研究所,北京,100083
2. 北京林业大学基础科学与信息工程学院,北京,100083 |
| |
| 基金项目： | 国家“8 63”计划项目 (2 0 0 2AA2 410 71)，国家“十五”科技攻关项目 (2 0 0 2BA5 15B0 3 0 3 )资助。 |
| |
| 摘 要： | 利用 9a生三倍体毛白杨测定林的 9个无性系为试材 ,着重研究了木材干缩率的遗传学问题。结果表明 :木材干缩率在无性系间的差异都达到了极显著水平 ,并受到强度遗传控制 ;木材干缩在株内纵向的变异模式是随树高增加而降低 ;全干体积 ,径向、弦向干缩率和气干体积 ,径向、弦向干缩率无性系重复力分别为 0 89,0 95 ,0 84 ,0 6 7,0 84和 0 6 8。
|
| 关 键 词： | 毛白杨 三倍体无性系 干缩率 遗传变异 重复力 |
| 文章编号： | 1001-7488(2004)01-0137-05 |
| 修稿时间： | 2002年7月1日 |
Genetic Analysis of Shrinkage of New Triploid Clones of Populus tomentosa |
| |
| Xing Xinting,Zhang Zhiyi.Genetic Analysis of Shrinkage of New Triploid Clones of Populus tomentosa[J].Scientia Silvae Sinicae,2004,40(1):137-141. |
| |
| Authors: | Xing Xinting Zhang Zhiyi |
| |
| Abstract: | The wood samples of 9 triploid clones of Populus tomentosa were cut from 9-year-old clonal stand.The oven-dried and air-dried samples were used to study their genetic variation in shrinkage. The results indicated that there were significant differences between clones and all the coefficients of shrinkage that were found to be under strong genetic control. The vertical variation pattern within tree of shrinkage was downward with the tree height. The clonal repeatability's in shrinkage of oven-dried and air-dried timber in volume, radial and tangential direction were respectively 0.89,0.95,0.84,0.67,0.84 and 0.68. |
| |
| Keywords: | Populus tomentosa Triploid clone Shrinkage Genetic variation Repeatability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
