Vigna unguiculata L.

Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models

F. E. Torres, Teodoro, P. E., Rodrigues, E. V., Santos, A., Corrêa, A. M., Ceccon, G., Torres, F. E., Teodoro, P. E., Rodrigues, E. V., Santos, A., Corrêa, A. M., and Ceccon, G., Simultaneous selection for cowpea (Vigna unguiculata L.) genotypes with adaptability and yield stability using mixed models, vol. 15, p. -, 2016.

The 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.

Measurements of experimental precision for trials with cowpea (Vigna unguiculata L. Walp.) genotypes

P. E. Teodoro, Torres, F. E., Santos, A. D., Corrêa, A. M., Nascimento, M., Barroso, L. M. A., Ceccon, G., Teodoro, P. E., Torres, F. E., Santos, A. D., Corrêa, A. M., Nascimento, M., Barroso, L. M. A., and Ceccon, G., Measurements of experimental precision for trials with cowpea (Vigna unguiculata L. Walp.) genotypes, vol. 15, p. -, 2016.

The aim of this study was to evaluate the suitability of statistics as experimental precision degree measures for trials with cowpea (Vigna unguiculata L. Walp.) genotypes. Cowpea genotype yields were evaluated in 29 trials conducted in Brazil between 2005 and 2012. The genotypes were evaluated with a randomized block design with four replications. Ten statistics that were estimated for each trial were compared using descriptive statistics, Pearson correlations, and path analysis.

Bayesian approach increases accuracy when selecting cowpea genotypes with high adaptability and phenotypic stability

L. M. A. Barroso, Teodoro, P. E., Nascimento, M., Torres, F. E., A. Santos, dos, Corrêa, A. M., Sagrilo, E., Corrêa, C. C. G., Silva, F. A., Ceccon, G., Barroso, L. M. A., Teodoro, P. E., Nascimento, M., Torres, F. E., A. Santos, dos, Corrêa, A. M., Sagrilo, E., Corrêa, C. C. G., Silva, F. A., and Ceccon, G., Bayesian approach increases accuracy when selecting cowpea genotypes with high adaptability and phenotypic stability, vol. 15, p. -, 2016.

This study aimed to verify that a Bayesian approach could be used for the selection of upright cowpea genotypes with high adaptability and phenotypic stability, and the study also evaluated the efficiency of using informative and minimally informative a priori distributions. Six trials were conducted in randomized blocks, and the grain yield of 17 upright cowpea genotypes was assessed.

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