Analysis of line x environment interactions for yield in navy beans. 1. Components of variance

Butler, D. G., Redden, R. J., DeLacy, I. H. and Usher, T. (2000) Analysis of line x environment interactions for yield in navy beans. 1. Components of variance. Australian Journal of Agricultural Research, 51 5: 597-605.


Author Butler, D. G.
Redden, R. J.
DeLacy, I. H.
Usher, T.
Title Analysis of line x environment interactions for yield in navy beans. 1. Components of variance
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
Publication date 2000
Sub-type Article
DOI 10.1071/AR97135
Volume number 51
Issue number 5
ISSN 0004-9409
Start page 597
End page 605
Total pages 9
Editor J. Fegent
S. Banerjee
Place of publication Collingwood
Publisher CSIRO
Collection year 2000
Language eng
Subject C1
300203 Plant Improvement (Selection, Breeding and Genetic Engineering)
620108 Grain legumes
Abstract Multi-environment yield trials of navy bean (Phaseolus vulgaris L.) lines were grown over a diverse range of locations for the years 1983-1989 in Queensland, in an unbalanced set of line x location x year combinations. This is the first in a series of 3 papers reporting different perspectives on the genotype x environment (GxE) interactions in this series of experiments. In this paper, restricted maximum likelihood (REML) estimates of GxE components of variation were derived using trial means in both standard and extended models where concomitant genotype and location factors such as maturity, disease resistance, and experimental management regimes were investigated. Prior to estimating the variance components the heterogeneity of trial error variances was modelled. Several alternative trialing systems were compared using acceptance probabilities derived from the variance components. The interaction of genotype maturity with location considerably reduced the line x location x year variance component and further examination of the maturity x environment interaction suggested an advantage in stratifying the breeding program on maturity. There is no redundancy in the current trialing system and an increase in sampling locations can be justified.
Keyword Agriculture, Multidisciplinary
Phaseolus Vulgaris
Yield
Reml
Multi-environment Trials
Environments
Wheat Variety Database
Selection
Trials
Q-Index Code C1

Document type: Journal Article
Sub-type: Article
Collection: School of Agriculture and Food Sciences
 
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