Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of Brazil

Authors

  • Eduardo Anibele Streck Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.
  • Ariano Martins de Magalhães Júnior Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9o Distrito, Monte Bonito, Caixa Postal 321, CEP 96010-971 Pelotas, RS.
  • Paulo Ricardo Reis Fagundes Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9o Distrito, Monte Bonito, Caixa Postal 321, CEP 96010-971 Pelotas, RS.
  • Gabriel Almeida Aguiar Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.
  • Paulo Henrique Karling Facchinello Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.
  • Antônio Costa de Oliveira Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.25597

Keywords:

Oryza sativa, genotype x environment interaction, mixed models, plant breeding, zoning of cultivars

Abstract

The objective of this work was to estimate the effects of genotype x environment interaction and the genetic potential of flood-irrigated rice cultivars, released between 1972 and 2017, for the state of Rio Grande do Sul, Brazil. The experiments were carried out in the field, in all agroclimatic regions of flood-irrigated rice crop in the state, between the 2005/2006 and 2015/2016 crop years, totaling 60 environments (trials), with 1,961 experimental units. Twenty-five cultivars of irrigated rice were evaluated for the traits grain yield, plant height, days to flowering, and whole grain quality after milling. The values of adaptability and stability were estimated with the aid of mixed models. The rice cultivars BRS Pampa, BRS Pampeira, and BRSCIRAD 302 showed simultaneously high-genotypic grain yield, adaptability, stability, good agronomic traits, and good whole-grain yield after milling. 'BRSCIRAD 302' and 'BRS Pampa' show high-yield stability and can be recommended for all rice cultivation regions of Rio Grande do Sul. 'BRS Pampeira' is responsive to environmental improvements and is indicated for high-technology conditions.

Author Biographies

Eduardo Anibele Streck, Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.

http://lattes.cnpq.br/8739158698887173

Ariano Martins de Magalhães Júnior, Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9o Distrito, Monte Bonito, Caixa Postal 321, CEP 96010-971 Pelotas, RS.

http://lattes.cnpq.br/7042859921458132

Paulo Ricardo Reis Fagundes, Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9o Distrito, Monte Bonito, Caixa Postal 321, CEP 96010-971 Pelotas, RS.

http://lattes.cnpq.br/6492480251943384

Gabriel Almeida Aguiar, Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.

http://lattes.cnpq.br/2480923092699999

Paulo Henrique Karling Facchinello, Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.

http://lattes.cnpq.br/0123726732887961

Antônio Costa de Oliveira, Universidade Federal de Pelotas, Avenida Eliseu Maciel, s/no, Caixa Postal 354, CEP 96010-610 Capão do Leão, RS.

http://lattes.cnpq.br/2717555680999191

 

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Published

2018-11-26

How to Cite

Streck, E. A., Martins de Magalhães Júnior, A., Reis Fagundes, P. R., Aguiar, G. A., Facchinello, P. H. K., & Oliveira, A. C. de. (2018). Adaptability and stability of flood-irrigated rice cultivars released to the subtropical region of Brazil. Pesquisa Agropecuaria Brasileira, 53(10), 1140–1149. https://doi.org/10.1590/S1678-3921.pab2018.v53.25597

Issue

v.53, n.10, out. 2018

Section

GENETICS