木材材性株内径向变异模式研究初探* Ⅴ. 15个欧美杨无性系木材纤维长度的径向变异模式的研究

Abstract

Abstract:

The radial variation patterns of wood fibre length of 15 clones of Populus×euramercana were geneerally the same. But there existed a certain degree of interclonal and intraclonal variation. Average fibre length at various ages and the parameters related to variation patterns as well varied significantly among clones. This encourages the improvement of both the average level of fibre length and its variation patterns by selection and breeding. The radial variation patterns of fibre length of 15 clones were divided into three groups by classical analysis and expressed using the methematical model Y=C₁+ C₂×X₂+C₃exp (-C₄×X₁). There existed intersection betw een fibre length profiles of different clones, but the age- age correlation were significant, indicating that the early - selection among clones is feasible.

Key words: Fibre length, Ridial variation patterns, Wood, Clones of Populus×euramericana

Xiaomei Jiang,Mingkun Xu,Dongsen Huang. A PRIMARY STUDY ON THE RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES Ⅴ. THE RADIAL V ARIATION PATTERNS AND ITS V ARIATION OF WOOD FIBRE LENGTH OF 15 CLONES OF POPULUS× EURAMERICANA[J]. Scientia Silvae Sinicae, 1997, 33(2): 168-175.

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A PRIMARY STUDY ON THE RADIAL VARIATION PATTERNS OF WOOD PROPERTIES WITHIN TREES Ⅴ. THE RADIAL V ARIATION PATTERNS AND ITS V ARIATION OF WOOD FIBRE LENGTH OF 15 CLONES OF POPULUS× EURAMERICANA

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