STATISTICAL TEST FOR GENOTYPE AND ENVIRONMENT CONTRIBUTION IN THE GENOTYPES x ENVIRONMENTS INTERACTION MATRIX
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
07/11/2013
07/11/2013
2012
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Resumo |
The objective of the present work was to propose a method for testing the contribution of each level of the factors in a genotypes x environments (GxE) interaction using multi-environment trials analyses by means of an F test. The study evaluated a data set, with twenty genotypes and thirty-four environments, in a block design with four replications. The sum of squares within rows (genotypes) and columns (environments) of the GxE matrix was simulated, generating 10000 experiments to verify the empirical distribution. Results indicate a noncentral chi-square distribution for rows and columns of the GxE interaction matrix, which was also verified by the Kolmogorov-Smirnov test and Q-Q plot. Application of the F test identified the genotypes and environments that contributed the most to the GxE interaction. In this way, geneticists can select good genotypes in their studies. Conselho Nacional Cientifico e Tecnologico (CNPq) Brazilian science funding agencies Brazilian science funding agencies CNPq |
Identificador |
INTERCIENCIA, CARACAS, v. 37, n. 7, p. 515-519, JUL, 2012 0378-1844 |
Idioma(s) |
eng |
Publicador |
INTERCIENCIA CARACAS |
Relação |
INTERCIENCIA |
Direitos |
restrictedAccess Copyright INTERCIENCIA |
Palavras-Chave | #GENOTYPE AND ENVIRONMENT CONTRIBUTION #GXE INTERACTION #NONCENTRAL CHI-SQUARE DISTRIBUTION #MODIFIED F TEST #MODELS #ECOLOGY |
Tipo |
article original article publishedVersion |