Identifying essential test locations for oat breeding in eastern Canada.
By Weikai Yan, J. Frégeau-Reid, D. Pageau, Richard Martin, Jennifer Mitchell-Fetch, M. Etienne, J. Rowsell, P. Scott, M. Price, B. Haan and 4 more. 2010
106 citations recorded by the source corpus.
The oat (Avena sativa L.) breeding program at the Eastern Cereal and Oilseed Research Centre of Agriculture & Agri-Food Canada has the responsibility to breed new oat cultivars for producers in eastern Canada, which includes Ontario, Quebec, and the Atlantic provinces. A 3-yr multilocation test was conducted to understand the genotype × location interaction patterns and the relationships among test locations in eastern Canada. A genotype + genotype × environment interaction biplot analysis of yield data revealed three distinct oat mega-environments in eastern Canada: (i) northern Ontario, (ii) southern and eastern Ontario, and (iii) Quebec and Atlantic Canada. To breed for all megaenvironments, initial yield screening must be conducted at locations representing each of these mega-environments. Based on the relationships among test locations, six essential test locations were identifi ed: three in Ontario, two in Quebec, and one in Atlantic Canada. Testing at all six locations appeared to provide a good coverage of the whole oat-growing area in eastern Canada. Based on these fi ndings, a breeding and test strategy was developed. This includes conducting initial yield screening at three locations in Ontario, Quebec, and Atlantic Canada, followed by a formal yield test at all six essential test locations. Specifi cally adapted genotypes selected from this test will then be tested in the Registration Tests in their respectively adapted subregions.
Subfields: Genetics, Plant Science
View Paper: https://www.semanticscholar.org/paper/2d3b753d3b4e4e2672d5a756ed9a736480ce02c5
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In Genetics
In Plant Science
Citations in the corpus
- Performance of extra-early maize cultivars based on GGE biplot and AMMI analysis (2011, methodology): “The GGE biplot explained 0·74 of the G+GE, while the AMMI analysis captured 0·13 of the total G + GE, indicating that GGE biplot accounted for more of G+GE variation in grain yield of extra-early cultivars than AMMI graph.”