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Analyzing genotype-by-environment interaction using curvilinear regression Scientia Agricola
Pereira,Dulce Gamito Santinhos; Rodrigues,Paulo Canas; Mejza,Iwona; Mejza,Stanislaw; Mexia,João Tiago.
In the context of multi-environment trials, where a series of experiments is conducted across different environmental conditions, the analysis of the structure of genotype-by-environment interaction is an important topic. This paper presents a generalization of the joint regression analysis for the cases where the response (e.g. yield) is not linear across environments and can be written as a second (or higher) order polynomial or another non-linear function. After identifying the common form regression function for all genotypes, we propose a selection procedure based on the adaptation of two tests: (i) a test for parallelism of regression curves; and (ii) a test of coincidence for those regressions. When the hypothesis of parallelism is rejected,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scheffé multiple comparison method; Joint regression analysis; Test for parallelism; Test of coincidence.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000600003
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