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Acta Agron Sin ›› 2008, Vol. 34 ›› Issue (03): 412-417.doi: 10.3724/SP.J.1006.2008.00412

• CROP GENETICS & BREEDING·GERMPLASM RESOURCES·MOLECULAR GENETICS • Previous Articles     Next Articles

Efficiency of Spatial Statistical Analysis in Superior Genotype Selection of Plant Breeding

HU Xi-Yuan,LI Jian-Ping,SONG Xi-Fang   

  1. Agriculture Collage, Northwest A & F University, Yangling 712100, Shaanxi, China
  • Received:2007-07-25 Revised:1900-01-01 Online:2008-03-12 Published:2008-03-12
  • Contact: HU Xi-Yuan

Abstract:

The objective of this study was to evaluate the efficiency of spatial statistical analysis in the superior genotype selection of plant breeding using the data from a yield trial of wheat with 56 test lines in a block design. The spatial analysis used linear mixed model with spatial covariance for residuals which was estimated using semivariogram defined in geostatistics. Results showed a typical spatial correlation of residuals, which allowed a reduction in standard errors of line effect estimate and a greater efficiency of F- and t-test in discrimination of lines when spatial analysis was applied. Furthermore, in estimation of line effect the spatial analysis was less influenced by assay condition variation, and led to a different ranking and selection of genetic materials, in comparison with traditional analysis of variance.

Key words: Spatial statistics, Plant breeding, Superior genotype selection

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