Comparison of Weighting in Two-Stage Analysis of Plant Breeding Trials

Möhring, J. and Piepho, H.P. (2009) Comparison of Weighting in Two-Stage Analysis of Plant Breeding Trials. Crop Science, 49 (6). pp. 1977-1988.

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Series of plant breeding trials are often unbalanced and have a complex genetic structure. To reduce computing cost, it is common practice to employ a two-stage approach, where adjusted means per location are estimated and then a mixed model analysis of these adjusted means is performed. An important question is how means from the first step should be weighted in the second step. Our objective therefore was the comparison of different weighting methods in the analysis of four typical series of plant breeding trials using mixed models with fixed or random genetic effects. We used four published weighting methods and proposed three new methods.....

Item Type: Article
Uncontrolled Keywords: Plant breeding, Genetic structure, Evaluation criteria, Missing-at-random
Author Affiliation: Bioinformatics Unit, Institute for Crop Production and Grassland Research, Universität Hohenheim, 70593 Stuttgart, Germany
Subjects: Crop Improvement
Crop Improvement > Plant Breeding
Divisions: General
Depositing User: Mr B Krishnamurthy
Date Deposited: 03 Feb 2017 04:24
Last Modified: 03 Feb 2017 04:24
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