Resumo

VARELA, M et al. UNA GENERALIZACIÓN DE LOS MODELOS AMMI BASADA EN EL ALGORITMO DE TUCKALS3 PARA EL ANÁLISIS DE COMPONENTES PRINCIPALES DE TRES MODOS. cultrop [online]. 2008, vol.29, n.1, pp.69-72. ISSN 0258-5936.

The three-mode Principal Component Analysis (TUCKALS3 model) is used to study three-way structured data, specifically three-order interaction associated to a lineal model. The three-order interaction residuals are decomposed by means of multiplying three marker matrices associated to each source of variation analyzed, searching for the best reduced dimension approximation according to the least squared estimation. TUCKALS3 will be applied to the genotype-environment interaction analysis, in order to evaluate the behavior of ten potato varieties under Cuban conditions. The unstable performance of these varieties under such conditions was proved

Palavras-chave : statistical methods; genotype environment interaction; models.

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