| 36个美洲黑杨无性系基本材性遗传变异的研究* |
| |
| 引用本文： | 姜笑梅,张立非,张绮纹,陈一山,于中奎,谢荷峰.36个美洲黑杨无性系基本材性遗传变异的研究*[J].林业科学研究,1994,7(3):253-258. |
| |
| 作者姓名： | 姜笑梅 张立非 张绮纹 陈一山 于中奎 谢荷峰 |
| |
| 作者单位： | 中国林业科学研究院木材工业研究所，中国林业科学研究院林业研究所，山东省林业厅 |
| |
| 基金项目： | 1991年世界银行贷款的国家造林推广项目的材性课题 |
| |
| 摘 要： | 山东省长清县３６个８年生美洲黑杨无性的木材基本密度、纤维长度，树高和胸径在无性系间的变异达极显著水平，用选优法选出５个密度较高，纤维较生，生长较快的优良无性系，它们的引种号分别是１３号，３号，３４号，２２号和８号，除２２号起源于加拿大外，其余均起源于美国，木材基本密度，纤维长度，树高和胸径的广义遗传力分别为０．３２、０．４０、０．４３和０．７１，材性和生长性受中等或较强遗传控制。树木生长速度分别与
|
| 关 键 词： | 美洲黑杨 遗传变异 无性系 |
| 收稿时间： | 1/4/1994 12:00:00 AM |
Genetic Variation in Basic Wood Properties of 36 Clones of Populus deltoides |
| |
| Jiang Xiaomei,Zhang Lifei,Zhang Qiwen,Chen Yishan,Yu Zhongkui and Xie Hefeng.Genetic Variation in Basic Wood Properties of 36 Clones of Populus deltoides[J].Forest Research,1994,7(3):253-258. |
| |
| Authors: | Jiang Xiaomei Zhang Lifei Zhang Qiwen Chen Yishan Yu Zhongkui and Xie Hefeng |
| |
| Institution: | The Research Institute of Wood Industry, CAF Beijing 100091;The Research Institute of Wood Industry, CAF Beijing 100091;The Research Institute of Forestry, CAF;Forestry Bureau of Shandong Province;Forestry Bureau of Shandong Province;Forestry Bureau of Shandong Province |
| |
| Abstract: | year-old clones of Populus deltoides Martr from the gene-pool inChangqing
County,Shandong Province were used as testing material.Their wood basic den-sity,fiber
length,tree height and DBH were measured and analysed.The results show:asignificant
variance was observed in 4 traits among the 36 clones. 5 fine clones with higherdensity,longer
fiber and faster growth were selected to be the best clones by optimization.Genetic variation of
wood basic properties and tree growth were analysed.The broad-senseheritabilities for basic
density(0.32),fiber length(0.40),tree height(0.43),DBH(0.71)of 36 clones were calculated.These
results showed that these basic wood properties and treegrowth were under moderate and
stronger genetic control.There was a slight negativegenetic correlation between the wood basic
density and tree growth rate, as well as a positivegenetic correlation between the fiber length
and tree growth rate. The traits of density andlength can be selected independently. The
genetic parameters of wood basic properties andtree growth were put forward for the
introduction of P. deltoides.Moreover,the wood basicdensity, fiber length,tree height and DBH
of female and male trees were compared.The dif-ferences of 4 traits between female and male
trees were not significant. |
| |
| Keywords: | Populus deltoides wood basic density fiber length genetic variation |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《林业科学研究》浏览原始摘要信息 |
| 点击此处可从《林业科学研究》下载免费的PDF全文 |
|
