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空间分析及其对杉木遗传试验效率的影响(PDF)

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

Issue:
2015年05期
Page:
39-44
Column:
研究论文
publishdate:
2015-10-20

Article Info:/Info

Title:
Spatial analysis and its effects on efficiency of genetic trial in Chinese fir
Article ID:
1000-2006(2015)05-0039-06
Author(s):
BIAN Liming1 ZHENG Renhua2 XIAO Hui2 GAN Zhendong3 SU Shunde2 SHI Jisen1*
1.Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China;
2. Fujian Academy of Forestry, Fuzhou 350012, China;
3. Weimin Forest Farm, Fujian Province, Shaowu 354006, China
Keywords:
Chinese fir efficiency of genetic trial spatial analysis spatial variation incomplete block
Classification number :
S711; S722
DOI:
10.3969/j.issn.1000-2006.2015.05.007
Document Code:
A
Abstract:
DBH at the age of 10 years in a progeny test of Chinese fir with 80 families from Fujian Weimin Forest Farm was examined by both experimental design model and combined design with spatial model, through which spatial analysis methods using ASReml was introduced, and efficiency of genetic trial was improved. All design effects was found replaced by spatial effects in combined model. AIC was reduced by 129.2 in spatial model, which was more effectively modelled the spatial variation than the design model, and greatly increased additive genetic variance by 16.5%, reduced residual variance by 11.6%, and improved individual tree narrow sense heritabilities by 31.3% correspondingly. Autocorrelations in row and column direction with 0.89 and 0.96 indicated that there are strong global trend in this site.

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Last Update: 2015-10-15