Produção Nacional
Revisado por pares
Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models
2016; Research Foundation of Ribeirão Preto; Volume: 15; Issue: 2 Linguagem: Inglês
10.4238/gmr.15028272
ISSN1676-5680
AutoresFrancisco Eduardo Torres, Paulo Eduardo Teodoro, Erina Vitório Rodrigues, Anacleto Ranulfo dos Santos, Agenor Martinho Corrêa, G. Ceccon,
Tópico(s)Genetic and Environmental Crop Studies
ResumoThe aim of this study was to select erect cowpea (Vigna unguiculata L.) genotypes simultaneously for high adaptability, stability, and yield grain in Mato Grosso do Sul, Brazil using mixed models.We conducted six trials of different cowpea genotypes in 2005 and 2006 in Aquidauana, Chapadão do Sul, Dourados, and Primavera do Leste.The experimental design was randomized complete blocks with four replications and 20 genotypes.Genetic parameters were estimated by restricted maximum likelihood/best linear unbiased prediction, and selection was based on the harmonic mean of the relative performance of genetic values method using three strategies: selection based on F.E. Torres et al.©FUNPEC-RP www.funpecrp.com.brGenetics and Molecular Research 15 (2): gmr.15028272 the predicted breeding value, having considered the performance mean of the genotypes in all environments (no interaction effect); the performance in each environment (with an interaction effect); and the simultaneous selection for grain yield, stability, and adaptability.The MNC99542F-5 and MNC99-537F-4 genotypes could be grown in various environments, as they exhibited high grain yield, adaptability, and stability.The average heritability of the genotypes was moderate to high and the selective accuracy was 82%, indicating an excellent potential for selection.
Referência(s)