Adaptability and stability of maize landrace varieties

Autores

  • Raquel Barboza Reis de Oliveira Universidade Estadual de Londrina
  • Rosângela Maria Pinto Moreira Universidade Estadual de Londrina
  • Josué Maldonado Ferreira Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0359.2013v34n6p2555

Palavras-chave:

Zea mays, Genotypes x environments interaction, Family farm, Participatory breeding.

Resumo

 

Maize landrace varieties are known to be adaptable to different environmental conditions. The objective of this work was to estimate and compare adaptability and stability parameters of 12 maize landrace varieties during two cycles of recurrent selection. The study used grain yield data from eight experiments in the first selection cycle (Group I) and seven experiments in the second cycle (Group II). The experiments were conducted in Paraná and Santa Catarina states. Each experiment evaluated 12 maize landrace varieties and one control variety, BR106. The experiments involved a randomized complete block design in which four methodologies were used to analyze variety stability and adaptability. The majority of the maize landraces assessed were competitive with the control BR 106 in the environments studied. Different adaptability and stability outcomes were verified for both groups. The varieties Macaco, Amarelão and Carioca, from Group I, and Palha Roxa, Amarelão and Astequinha Sabugo Fino, from Group II, showed superior average grain yield, general adaptability and stability.

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Biografia do Autor

Raquel Barboza Reis de Oliveira, Universidade Estadual de Londrina

Bióloga, M.e em Genética e Biologia Molecular, Universidade Estadual de Londrina, UEL, Londrina, PR.

Rosângela Maria Pinto Moreira, Universidade Estadual de Londrina

 

Josué Maldonado Ferreira, Universidade Estadual de Londrina

Engeº Agrº, Prof. Dr.  da UEL, Londrina, PR.

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Publicado

2013-12-11

Como Citar

Oliveira, R. B. R. de, Moreira, R. M. P., & Ferreira, J. M. (2013). Adaptability and stability of maize landrace varieties. Semina: Ciências Agrárias, 34(6), 2555–2564. https://doi.org/10.5433/1679-0359.2013v34n6p2555

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