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 O objetivo deste trabalho foi comparar métodos de adaptabilidade e a estabilidade como critérios de seleção para cultivares de trigo no Paraná. Os dados de rendimento de grãos foram obtidos de ensaios de Valor de Cultivo e Uso, avaliados em 44 ambientes distribuídos em diferentes locais e época de semeadura. O estudo de adaptabilidade e estabilidade foi realizado com base nos métodos de Eberhart e Russell (1966), de Lin e Binns (1988) modificado por Carneiro (1998), de Porto, Carvalho e Pinto (2007) e de Rocha et al. (2005). Os métodos de Eberhart e Russell (1966), Lin e Binns (1988) modificado por Carneiro (1998) e o método de Porto, Carvalho e Pinto (2007) apresentaram resultados similares. Estes métodos foram superiores ao método de Rocha et al. (2005), que foi pouco rigoroso no processo seletivo. O método de Porto, Carvalho e Pinto (2007) teve a vantagem de simplificar as análises de adaptabilidade e estabilidade. The aim of this study was compare some techniques to assess the adaptability and stability seeking the selection of wheat genotypes in Paraná State. The grain yield data were obtained from trial experiments of the Value of Cultivation and Use, as assessed in 44 different locations in distributed environments and sowing date. The study of adaptability and stability were evaluated based on Eberhart and Russell (1966), Lin and Binns (1988) revised by Carneiro (1998), Porto, Carvalho and Pinto (2007) and Rocha et al. (2005). The methods of Eberhart and Russell (1966), Lin and Binns (1988) revised by Carneiro (1998), and the method of Porto, Carvalho and Pinto (2007) showed similar results. These methods were superior to the method of Rocha et al. (2005), which was sloppy in the selection process. The method of Porto, Carvalho and Pinto (2007) had the advantage of simplifying the analysis of adaptability and stability

Adaptabilidade e estabilidade como critério de seleção de cultivares de trigo no Estado do Paraná