Genotype-by-management interactions for grain yield and grain protein concentration of wheat

Cooper, M., Woodruff, D. R., Phillips, I. G., Basford, K. E. and Gilmour, A. R. (2001) Genotype-by-management interactions for grain yield and grain protein concentration of wheat. Field Crops Research, 69 1: 47-67. doi:10.1016/S0378-4290(00)00131-3

Author Cooper, M.
Woodruff, D. R.
Phillips, I. G.
Basford, K. E.
Gilmour, A. R.
Title Genotype-by-management interactions for grain yield and grain protein concentration of wheat
Journal name Field Crops Research   Check publisher's open access policy
ISSN 0378-4290
Publication date 2001-01-01
Year available 2001
Sub-type Article (original research)
DOI 10.1016/S0378-4290(00)00131-3
Open Access Status
Volume 69
Issue 1
Start page 47
End page 67
Total pages 21
Place of publication USA
Publisher Elsevier Science
Language eng
Subject C1
300203 Plant Improvement (Selection, Breeding and Genetic Engineering)
620101 Wheat
Abstract The magnitude of genotype-by-management (G x M) interactions for grain yield and grain protein concentration was examined in a multi-environment trial (MET) involving a diverse set of 272 advanced breeding lines from the Queensland wheat breeding program. The MET was structured as a series of management-regimes imposed at 3 sites for 2 years. The management-regimes were generated at each site-year as separate trials in which planting time, N fertiliser application rate, cropping history, and irrigation were manipulated. irrigation was used to simulate different rainfall regimes. From the combined analysis of variance, the G x M interaction variance components were found to be the largest source of G x E interaction variation for both grain yield (0.117 +/- 0.005 t(2) ha(-2); 49% of total G x E 0.238 +/- 0.028 t(2) ha(-2)) and grain protein concentration (0.445 +/- 0.020%(2); 82% of total G x E 0.546 +/- 0.057%(2)), and in both cases this source of variation was larger than the genotypic variance component (grain yield 0.068 +/- 0.014 t(2) ha(-2) and grain protein 0.203 +/- 0.026%(2)). The genotypic correlation between the traits varied considerably with management-regime, ranging from -0.98 to -0.31, with an estimate of 0.0 for one trial. Pattern analysis identified advanced breeding lines with improved grain yield and grain protein concentration relative to the cultivars Hartog, Sunco and Meteor. It is likely that a large component of the previously documented G x E interactions for grain yield of wheat in the northern grains region are in part a result of G x M interactions. The implications of the strong influence of G x M interactions for the conduct of wheat breeding METs in the northern region are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
Keyword Agronomy
Genotype X Environment Interaction
Broad And Specific Adaptation
Multi-environment Trials
Environment Interaction
3-way Data
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 47 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 50 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 02:20:38 EST