Analysis of line x environment interactions for yield in navy beans. 2. Pattern analysis of lines and environment within years

Redden, R. J., De Lacy, I. H., Butler, D. G. and Usher, T. (2000) Analysis of line x environment interactions for yield in navy beans. 2. Pattern analysis of lines and environment within years. Australian Journal of Agricultural Research, 51 5: 607-617.


Author Redden, R. J.
De Lacy, I. H.
Butler, D. G.
Usher, T.
Title Analysis of line x environment interactions for yield in navy beans. 2. Pattern analysis of lines and environment within years
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
Publication date 2000
Sub-type Article
DOI 10.1071/AR97136
Volume number 51
Issue number 5
ISSN 0004-9409
Start page 607
End page 617
Total pages 11
Editor J. Fegent
S. Banerjee
Place of publication Collingwood
Publisher CSIRO
Collection year 2000
Language eng
Subject C1
620108 Grain legumes
300203 Plant Improvement (Selection, Breeding and Genetic Engineering)
Abstract Seven years of multi-environment yield trials of navy bean (Phaseolus vulgaris L.) grown in Queensland were examined. As is common with plant breeding evaluation trials, test entries and locations varied between years. Grain yield data were analysed for each year using cluster and ordination analyses (pattern analyses). These methods facilitate descriptions of genotype performance across environments and the discrimination among genotypes provided by the environments. The observed trends for genotypic yield performance across environments were partly consistent with agronomic and disease reactions at specific environments and also partly explainable by breeding and selection history. In some cases, similarities in discrimination among environments were related to geographic proximity, in others management practices, and in others similarities occurred between geographically widely separated environments which differed in management practices. One location was identified as having atypical line discrimination. The analysis indicated that the number of test locations was below requirements for adequate representation of line x environment interaction. The pattern analyses methods used were an effective aid in describing the patterns in data for each year and illustrated the variations in adaptive patterns from year to year. The study has implications for assessing the number and location of test sites for plant breeding multi-environment trials, and for the understanding of genetic traits contributing to line x environment interactions.
Keyword Agriculture, Multidisciplinary
Phaseolus Vulgaris
Yield
Cluster Analysis
Ordination Analysis
Environments
Biplot
Q-Index Code C1

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