摘要
Wood basic densityies of about 100 Populus tomentosa Carr. clones grown in 4 clone testing plantations located in Hebei, Henan, Shandong and Gansu were tested and its inheritance and variation among clones and sites were studied. The results showed that the average wood basic density of the studied clones was 0 4363?g/cm 3 and there was significant difference in wood basic density between clones and sites. The high value of clonal repeatability(0 82～0 91)of wood basic density indicated that the character was under strong genetic control. Correlation analysis showed general significantly negative correlation between growth traits(including diameter at breast height, height, and volume) and wood basic density, although the correlation coefficients varied in a certain degree from one site to another. Studies on wood properties and relationships between tree growth and wood quality are of importance in such fields as wood properties breeding and combined improvement of both growth and wood quality.
Wood basic densityies of about 100 Populus tomentosa Carr. clones grown in 4 clone testing plantations located in Hebei, Henan, Shandong and Gansu were tested and its inheritance and variation among clones and sites were studied. The results showed that the average wood basic density of the studied clones was 0 4363?g/cm 3 and there was significant difference in wood basic density between clones and sites. The high value of clonal repeatability(0 82～0 91)of wood basic density indicated that the character was under strong genetic control. Correlation analysis showed general significantly negative correlation between growth traits(including diameter at breast height, height, and volume) and wood basic density, although the correlation coefficients varied in a certain degree from one site to another. Studies on wood properties and relationships between tree growth and wood quality are of importance in such fields as wood properties breeding and combined improvement of both growth and wood quality.
出处
《林业科学》
CAS
CSCD
北大核心
2000年第z01期125-130,共6页
Scientia Silvae Sinicae
基金
国家"九五"科技攻关毛白杨子专题! ( 96 0 11 0 2 13 0 2 )部分研究内容
关键词
毛白杨
木材
基本密度
遗传变异
无性系
Populus tomentosa Carr., Wood basic density, Inheritance and variation
