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林业科学 ›› 1995, Vol. 31 ›› Issue (1): 44-50.

• 论文及研究报告 • 上一篇    下一篇

群众杨改良无性系材性的遗传及性状相关的研究*

王克胜1,韩一凡1,任建中2,郑智礼2   

  1. 1. 中国林业科学研究院林业研究所 北京 100091
    2. 山西省杨树丰产林实验局 大同 037006
  • 收稿日期:1993-12-10 出版日期:1995-01-25 发布日期:1995-01-25

STUDY ON THE INHERITANCES AND CORRELATIONS OF WOOD QUALITY CHARACTERISTICS OF POPULUS×'POPULARIS' IMPROVED CLONES

Kesheng Wang1,Yifan Han1,Jianzhong Ren2,Zhili Zheng2   

  1. 1. The Research Institute of Forestry CAF Beijing 100091
    2. The Experimental Bureau of Poplar Shanxi Province DaTong 037006
  • Received:1993-12-10 Online:1995-01-25 Published:1995-01-25

摘要:

以群众杨改良无性系研究了木材材性性状的遗传及性状之间的相关。9个性状纤维长、纤维宽、长宽比、纤维壁厚、木材密度、年轮宽、树高、胸径、材积在无性系间存在显著或极显著的差异。纤维长、长宽比和太材密度具有较高的重复力,较大的遗传变异系数和遗传增益,三性状同性状3—4年与5—6年之间的相关达显著或极显著水平.简单相关、典型相关、通径分析均表明木材密度与纤维性状、生长性状是独立的。通径分析表明纤维长、树高、胸径对材积有较大的直接作用,纤维长宽比、纤维壁厚对材积的直接作用为负。纤维性状与生长性状两组性状之间由于纤维宽与材积、长宽比与树高、壁厚与年轮宽之间的相关而达显著相关。

关键词: 群众杨改良, 遗传, 木材密度, 纤维, 通径分析, 典型相关分析

Abstract:

This paper studies the inheritances and correlations of wood quality characteristics among Populus ×'popularis' improved clones. The significant differences among clones were found in fiber length, fiber widness} ratio of tength to widness} (double) wall thickness, wood specific gravity, widness of annual rings tree heights DBH and volume.1. Higher reapitabilities, larger genetic coefficients of variation and genetic gains were found in fiber length, ratio of length to widness and wood specific gravity.2. No significant correlations were found between wood specific gravity and growth traits, wood specific gravity and fiber traits according to three methods of simple correlation, path analysis and canonical correlation analysis.3. Fiber length, tree height and DBH have larger direct effect to volume. Fiber widness and ratio of fiber length to widness have negativ direct effect to volume. 4. Two group traits of fiber traits and growth traits were significant correlation due to the correlations of fiber widness with volume, ratio of length to widness with trEe height; fiber wall thickness with widness of annual ring.

Key words: Improvement of Populus ×'popularis', Inheritance, Wood specific gravity, Fiber, Path analysis, Canonical correlation analysis