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幼龄福建柏种源生长性状的遗传变异和种源选择(PDF)

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

Issue:
2005年05期
Page:
8-12
Column:
研究论文
publishdate:
2005-05-20

Article Info:/Info

Title:
Genetic Variations of Growth Traits Selection Among Provenances of Fokienia hodginsii at Juvenile Stage
Article ID:
1000-2006(2005)05-0008-05
Author(s):
ZHENG Ren-hua
Fujian Academy of Forestry, Mountain Timber Forest Cultivation Laboratory, The Ministry of Forestry, Fuzbou 350012, China
Keywords:
Fokienia hodginsii Provenance test Genetic variation Growth trait Juvenile stage
Classification number :
S722.3
DOI:
10.3969/j.jssn.1000-2006.2005.05.002
Document Code:
A
Abstract:
The provenance tests on 11 provenances of Fokienia hodginsii selected from provinces of Fujian, Hunan,Jiangxi, Guizhou, Guangdong and Zhejiang were carried out at Nanjing and Sanming,Fujian. The genetic variations of F. hodginsii were studied based on the investigation of 5-year-old provenance progeny trials. The results showed that there were abundant variations within F. hodginsii and significant or very significant differences among provenances in growth traits such as tree height, diameter at breast height, basal diameter and stem volume. The variations were mainly controlled by genetic factors and the traits had moderate or high heritabilities. The genetic variation pattern on the species of F. hodginsii might be random geographic variation and the correlations between growth traits and geo7 graphic and climatic factors in original regions of provenances were not obvious. Based on variance analyses,some superior provenances and individuals were selected. At Nanjing provenance trial, 3 superior provenances were Shangyou,Longyan and Liping and 14superior individuals were Nz001 etc.. At Sanming provenance trial,2 superior provenances were Daoxian and Liplng and 14 superior individuals were Sz001 etc.. These superior provenances and individuals could be used for vegetative propagation, seed orchard establishing and parents for hybridization. This research also provided a good base for up coming studies and utilization for F. hodginsii.

References

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Last Update: 2013-05-20