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杉木无性系微纤丝角遗传变异的研究(PDF)

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

Issue:
2005年01期
Page:
11-14
Column:
研究论文
publishdate:
2005-01-20

Article Info:/Info

Title:
Genetic Variation on Tracheid Microfibril Angle of Chinese Fir Clones
Article ID:
1000-2006(2005)01-0011-04
Author(s):
HUANG Shou-xian12 SHI Jise1* LI Li1 YANG Li-wei1 YANG Li-guo1 WENG Yu-zhen3 YU Rong-zhuo3 CHEN Xiao-chou3 ZHENG Ren-hua4
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. College of Forest Guangxi University, Nanning 530001, China; 3. Fujian Yangkou Forest Farm, Shunehang 353211, China; 4. Fujian Academy of Forestry, Fuzhou 350012, China
Keywords:
Chinese fir Clone Microfibril angle Genetic gains
Classification number :
S781.1
DOI:
10.3969/j.jssn.1000-2006.2005.01.003
Document Code:
A
Abstract:
Genetic variations on traeheid microfibril angle of 55 Chinese fir clones were investigated. The results revealed that microfibri[ angle had a highly significant difference among clones. The broad sense heritability estimates of clones varied between 0. 734 and 0. 867,indicating the microfibril angle was under strong genetic control. The average genetic gains were 19. 51% for the microfihril angle if 10% of the best clones was selected. The microfibril angle decreased with increase of growth ring age and the microfibril angle at the 10th ring was about 32. 1% less than that at the 1St ring. The microfibril angle showed a highly significant difference among different rings. The correlations coefficients of microfibril angle between different tree ages since 3rd growth ring were very significant indicating that early selection for the microfibril angle would be efficient.

References

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Last Update: 2013-05-20