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尾Pt桉二代种子园家系选择及遗传评估(PDF)

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

Issue:
2005年06期
Page:
40-44
Column:
研究论文
publishdate:
2005-10-20

Article Info:/Info

Title:
Selections and Genetic Analysis of Families in Second Generation Orchard of Eucalyptus urophylla
Article ID:
1000-2006(2005)06-0040-05
Author(s):
LI Guang-you XU Jian-min LU Zhao-hua BAI Jia-yu CHEN Ru-xiang
Research Institute of Tropical Forestry CAF, Guangzhou 510520, China
Keywords:
Eucalyptus urophylla Second-generation progeny testing Selection of eharaeters Genetic gain
Classification number :
S722
DOI:
10.3969/j.jssn.1000-2006.2005.06.010
Document Code:
A
Abstract:
A second-generation seedling seed orchard including 32 open-pollinated families of Eucalyptus urophylla was built at Gaoyao City, Guangdong Province to test the genetic performanee of families, which were selected from the superior trees in an improvement seed orchard. Compared with the characters of height, DBH, individual volume, survival rate, stem form, branch and blossom quantities among different families at 22 and 29 months. The results indicated that: (1)The most superior families by synthesis analysis are No. 21,11,1, 26,27,40,18 and 10 families; (2)With the 25%-elected rate, the genetic gain of volume of the superior families from seed orchard was estimated to be 12.96%~13.67%.

References

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Last Update: 2013-05-20