Uni and multivariate methods applied to studies of phenotypic adaptability in maize (Zea mays L.) - doi: 10.4025/actasciagron.v33i4.6953

Autores

  • Esmael Lopes dos Santos Fundação de Apoio à Pesquisa e ao Desenvolvimento do Agronegócio Autor
  • Deoclécio Domingos Garbuglio Instituto Agronômico do Paraná Autor
  • Pedro Mário de Araújo Instituto Agronômico do Paraná Autor
  • Antonio Carlos Gerage Instituto Agronômico do Paraná Autor
  • Pedro Sentaro Shioga Instituto Agronômico do Paraná Autor
  • Cássio Egidio Cavenaghi Prete Universidade Estadual de Londrina Autor

DOI:

https://doi.org/10.4025/actasciagron.v33i4.6953

Palavras-chave:

multivariate analysis, genotype x environment interaction, centroid method, bissegmented regression

Resumo

The objective of this study was to evaluate the performance of 15 maize cultivars in seven locations in Paraná State, Brazil. Towards this aim, grain yield trials were conducted during two crop seasons, and centroid (multivariate) and bissegmented regression (univariate) methods were used to evaluate possible divergences among results obtained. The genotypes were evaluated in randomized complete blocks with three replications. The centroid method was effective for indicating productive potential of genotypes, allowing for classification of genotype adaptability and stability. Values of probability above 0.40 allowed more reliable genotype classification for both adaptability and stability. The STRIKE genotype presented wide adaptability and stability by both the centroid and bissegmented regression methods. The SHS 4040 and CD 306 genotypes were not indicated for planting, considering the tested environments.

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Publicado

2011-05-04

Edição

Seção

Melhoramento Vegetal

Como Citar

Santos, E. L. dos, Garbuglio, D. D., Araújo, P. M. de, Gerage, A. C., Shioga, P. S., & Prete, C. E. C. (2011). Uni and multivariate methods applied to studies of phenotypic adaptability in maize (Zea mays L.) - doi: 10.4025/actasciagron.v33i4.6953. Acta Scientiarum. Agronomy, 33(4), 633-639. https://doi.org/10.4025/actasciagron.v33i4.6953

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