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黑杨派新无性系木材性状的遗传改良(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1989年03期
Page:
9-16
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
GENETIC IMPROVEMENT OF WOOD CHARACTERS OF NEW CLONES IN THE AIGEIROS SECTION
Article ID:
1000-2006(1989)03-0009-08
Author(s):
Wang Mingxiu Huang Minren Ruan Xigen Lu Shixing Xu Xizeng Xu Nong & Wu Rong ling
Department of Forestry
Keywords:
The Aigeiros section Clone Wood character Growth ring Variation within tree
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1989.03.002
Document Code:
A
Abstract:
There were vast genetic foundation for basic density (BD), fiber length (FL) and microfibril angle (MFA) in 1-69 poplar x Simon poplar and 1-69 poplar x Nigra poplar F1 clones, and the relationships among the three wood characters were independent, which indicated that it would be possible to select the genotypes with good wood properties that was big in BD, long in FL, close in the rang of microfibril. The variation pattern of wood characters within tree revealed the utilization rate of tree stem. BD was a falling-off in the horizontal change, which was considered as ideal type, FL increased with growth ring and the means of FL reached the standard of medium fiber length stipulated by the International Association of Wood Anatomists, MFA decreased gradually from pith to bark. The variation of the three wood characters in perpendicular direction could not make great influence on vertical utilization rate of tree stem.

References

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Last Update: 1900-01-01