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杉木第3代种质资源自由授粉子代生长性状 遗传变异及早期选择(PDF)

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

Issue:
2014年06期
Page:
38-42
Column:
研究论文
publishdate:
2014-12-09

Article Info:/Info

Title:
Genetic variation and early selection of growth traits in 8-year-old open-pollinated progenies of the 3rd germplasm of Chinese fir
Article ID:
1000-2006(2014)06-0038-05
Author(s):
ZHENG Renhua1SHI Jisen2 XIAO Hui1 HUANG Jinhua3 SU Shunde1 XU Luping4 OUYANG Lei1 ZHANG Zhicai3 YE Daiquan3 FANG Yanghui3
Keywords:
Chinese fir the 3rd germplasm progeny test genetic variation early selection
Classification number :
S722
DOI:
10.3969/j.issn.1000-2006.2014.06.008
Document Code:
A
Abstract:
To evaluate and utilize superior Chinese fir germplasm, growth traits(tree height, DBH and stem volume)at age 8 from open pollinated progeny test of the 3rd germplasm of Chinese fir were investigated and analyzed, and superior germplasm of Chinese fir was selected. The overall mean of tree height, DBH and stem volume was 9.31 m,11.88 cm and 0.062 91 m3, with annual 1.16 m,1.49 cm,and 0.007 86 m3 growth, respectively. The genetic variation coefficient of tree height, DBH and stem volume was 2.157%-6.061%, 1.826%-2.769% and 4.895%-6.907%, respectively. Family heritabilities of these traits were 0.348-0.690, 0.167-0.328 and 0.217-0.367 separately. 25 families from the total 97 families were selected, with mean value of tree height, DBH and stem volume was 9.70 m, 12.60 cm, 0.072 21 m3, and more 4.19%, 6.06% and 14.78% than sampled population, respectively. The genetic gain of these traits was 1.88%,1.98% and 5.42%, separately. The results provide evidences of selecting materials for the 3rd generation of Chinese fir seed orchard.

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Last Update: 2014-12-31