Agronomic performance and grain yield in early common bean genotypes in Paraná state

Juliana Sawada Buratto, Vânia Moda-Cirino, Nelson da Silva Fonseca Júnior, Cássio Egidio Cavenagui Prete, Ricardo Tadeu de Faria

Abstract


In the development of early beans cultivars it is very important high grain yield and predictable behavior. The objective of this work was to assess adaptability and phenotypic stability grain yield in early common bean genotypes. The experiments were conducted in two cropping season in the following counties: Londrina, Irati, Pato Branco and Capitão Leonidas Marques (wet season 2004/2005); Pato Branco and Ponta Grossa (dry season 2005). Complete randomized block with three replications was used. In the maturation stage (R9) grain yield were assessed and the data were transformed to kg.ha-1 and corrected for 13% humidity. The individual and combined variance analyses indicated significant differences among genotypes. The genotype x environmental interaction was significant considering 1% probability, revealing that the genotypes evaluated performed differently according to the environment where the tests were done. The lines LPSIA 04 103, LPSIA 04 105 and LPSIA 04 107 showed general adaptability (b1i=1), high phenotypic stability (s2di=0), and superior average yield.


Keywords


Phaseolus vulgaris; Grain yield; Genotype x environment interaction; Phenotypic stability.



DOI: http://dx.doi.org/10.5433/1679-0359.2007v28n3p373

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional