Comparison of multivariate methods for studying the G×E interaction

Authors

  • Deoclécio Domingos Garbuglio Instituto Agronômico do Paraná
  • Daniel Furtado Ferreira Universidade Federal de Lavras
  • Pedro Mário de Araújo Instituto Agronômico do Paraná
  • Antonio Carlos Gerage Instituto Agronômico do Paraná
  • Pedro Sentaro Shioga Instituto Agronômico do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2015v36n6p3499

Keywords:

Multivariate analysis, Factor analysis, Genotypic effect, Maize.

Abstract

The objective of this work was to evaluate three statistical multivariate methods for analyzing adaptability and environmental stratification simultaneously, using data from maize cultivars indicated for planting in the State of Paraná-Brazil. Under the FGGE and GGE methods, the genotypic effect adjusts the G×E interactions across environments, resulting in a high percentage of explanation associated with a smaller number of axes. Environmental stratification via the FGGE and GGE methods showed similar responses, while the AMMI method did not ensure grouping of environments. The adaptability analysis revealed low divergence patterns of the responses obtained through the three methods. Genotypes P30F35, P30F53, P30R50, P30K64 and AS 1570 showed high yields associated with general adaptability. The FGGE method allowed differences in yield responses in specific regions and the impact in locations belonging to the same environmental group (through rE) to be associated with the level of the simple portion of the G×E interaction.

Author Biographies

Deoclécio Domingos Garbuglio, Instituto Agronômico do Paraná

Pesquisador, Instituto Agronômico do Paraná, IAPAR, Londrina, PR, Brasil.

Daniel Furtado Ferreira, Universidade Federal de Lavras

Prof., Universidade Federal de Lavras, UFLA, Lavras, MG, Brasil.

Pedro Mário de Araújo, Instituto Agronômico do Paraná

Pesquisador, Instituto Agronômico do Paraná, IAPAR, Londrina, PR, Brasil.

Antonio Carlos Gerage, Instituto Agronômico do Paraná

Pesquisador, Instituto Agronômico do Paraná, IAPAR, Londrina, PR, Brasil.

Pedro Sentaro Shioga, Instituto Agronômico do Paraná

Pesquisador, Instituto Agronômico do Paraná, IAPAR, Londrina, PR, Brasil.

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Published

2015-12-09

How to Cite

Garbuglio, D. D., Ferreira, D. F., Araújo, P. M. de, Gerage, A. C., & Shioga, P. S. (2015). Comparison of multivariate methods for studying the G×E interaction. Semina: Ciências Agrárias, 36(6), 3499–3516. https://doi.org/10.5433/1679-0359.2015v36n6p3499

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