African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6693

Full Length Research Paper

Adaptability and stability of cowpea genotypes to Brazilian Midwest

A. Santos
  • A. Santos
  • Stadual University of North Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil.
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G. Ceccon
  • G. Ceccon
  • Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
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E. V. Rodrigues
  • E. V. Rodrigues
  • Stadual University of North Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil.
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P. E. Teodoro
  • P. E. Teodoro
  • Stadual University of Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil.
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P. A. Makimo
  • P. A. Makimo
  • Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
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J. F. Silva
  • J. F. Silva
  • Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil.
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A. M. Correa
  • A. M. Correa
  • Stadual University of Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil.
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R. C. F. Alvares
  • R. C. F. Alvares
  • Federal University of Mato Grosso do Sul, Chapadao do Sul, MS, Brazil.
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F. E. Torres
  • F. E. Torres
  • Stadual University of Mato Grosso do Sul, Aquidauana, Mato Grosso do Sul, Brazil.
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  •  Received: 15 July 2015
  •  Accepted: 21 August 2015
  •  Published: 08 October 2015

Abstract

This study aimed to evaluate cowpea genotypes for adaptability and stability of grain yield using different methods, in order to support the launch and/or cultivars recommendation for agribusiness in the Brazilian Midwest. Trials were conducted from 2010 to 2012 in four locations, totaling eight environments. We evaluated 20 cowpea genotypes arranged in a randomized block design with four replications. Studies of adaptability and stability of cowpea genotypes were estimated using different methods. The environments A1, A5, A6 and A8 are the most appropriate for selecting superior genotypes for adaptability and stability. The genotypes MNC03-737F-5-1 BRS-Tumucumaque, BRS-Guariba, MNC02-684F-5-6, MNC03-725F-3, MNC02-682F-2-6, BRS-Cauamé, BRS-Itaim and MNC03- 737F-5-11 showed adaptability and stability sufficient for recommendation for the region. Eberhart and Russell, Lin and Binns and AMMI methods can be used as a complementary way to better predict the genotype performance.

 

Key words: Genotype, environment interaction, selection Vigna unguiculata.