Recurrent selection

Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis

C. C. Sousa, Damasceno-Silva, K. J., Bastos, E. A., and Rocha, M. M., Selection of cowpea progenies with enhanced drought-tolerance traits using principal component analysis, vol. 14, pp. 15981-15987, 2015.

Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought tolerance, by applying principal component analysis to 219 first-cycle progenies obtained in a recurrent selection program.

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