材性改良研究  

RESEARCH ON WOOD PROPERTIES IMPROVEMENT Ⅵ.GENETIC CORRELATION ANALYSIS ON WOOD PROPERTIES OF NEW CLONES OF POPULUS DELTOIDES×P.SIMONII

作　　者：潘惠新[1] 黄敏仁[1] 

机构地区：[1]南京林业大学林木遗传和基因工程开放研究实验室

出　　处：《林业科学》1997年第1期83-92,共10页Scientia Silvae Sinicae

摘　　要：对美洲黑杨×小叶杨新无系木材性状遗传相关分析结果表明，年轮宽度与早材宽度、晚格宽度遗传相关比较密切，与晚材率之间相关很弱；而年轮密度与材密度，晚材密度，最小密度及最大密度霜关密切，晚材密度比及木材密度梯度相关很弱，年轮密度与年轮宽度之间呈负弱相关。In this paper the genetic correlation analysis on wood properties of nwe clones of Populus deltoides × P.simonii was studied.The results showed that ring width was closely related to both earlywood width and latewood width genetically,but hardly related to latewood percentage.Ring density was closdly interrelated to the other wood traits genetically (r= 0.84-0.95),including earlywood density,latewood density,the minimum wood density and the maximum wood density,but weakly related to both early-late wood density rate and the gradient of wood density.Moreover,the genetic relationship between ring width and ring density was negatie and very weak.

关 键 词：美洲黑杨 小叶杨 遗传相关分析 材性改良 

分 类 号：S718.46[农业科学—林学]