Análises Biplot: conceitos, interpretaçöes e aplicaçöes.

Bipiot analysis: concepts, interpretations and uses.

The genotype environment interaction (GE) influences on the selection and recommendation of cultivars. Biplot analysis has been increasingly used in data analysis of complex traits in agriculture. However the peculiarities of biplot graphic could induce the researcher to errors on interpretation. Thus, this review argues the applicability and graphic interpretation of models AMMI (Additive Main Effects and Multiplicative Interaction) and GGE biplof (genotype main effects + genotype environment interaction). Moreover, also aims to explain that it is not adequate to compare both statistical methods. It is discussed the best methodology considering the information required and the research objectives. [ABSTRACT FROM AUTHOR]

A seleção e recomendação de genótipos superiores são dificultadas devido à ocorrência da interação genótipo e ambiente. Nesse contexto, as análises biplot têmn sido cada vez mais utilizadas na análise de dados agronômicos, corn interaçoes de nafureza complexa. Entretanto, as particularidades existentes no gráfico biplot dificultam sua interpretação, podendo induzir o pesquisador a erros. Assim, este art igo de revisão discute a aplicabilidade e a interpretaçao grafica dos rnodelos AMMI (Additive Main effects and Multiplicative Interaction) e GGE biplot (genotype main effects + genotype environment interaction) destas análises no gráfico biplot. Também, visa a desmistificar a necessidade de comparacão entre ambas as mnetodologias. Discute-se quanto à escolha da mnetodologia mais adequada, levando emn consideração a informnação requerida e os objetivos do pesquisador. [ABSTRACT FROM AUTHOR]

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