Effectiveness of breeding selection for grain quality in common bean.

he aims of this study were to investigate the genetic variability and the genotype × environment interaction for quality and yield traits in common bean (Phaseolus vulgaris L.), to evaluate the degree of informativeness of the evaluations of grain quality in only one environment, to estimate genetic parameters for grain quality traits, and to select lines with superior grain quality. We evaluated 81 carioca common bean lines in preliminary line trials in several environments for nutritional, technological, and commercial quality and selected the 20 superior lines, which were evaluated in validation trials in nine environments. Individual and combined ANOVAs were performed for all the traits. Correlations were estimated between Fe and Zn concentrations and yield; adaptability and phenotypic stability were analyzed; and superior genotypes were selected based on the Mulamba & Mock index. It is possible to increase the Fe, Zn, and crude protein concentrations and reduce cooking time; however, increasing crude fiber is a challenge. Preliminary evaluation of the quality traits in only one environment was effective and sufficient for selection of genotypes superior in Fe concentration, crude fiber, crude protein, and cooking time; and genetic gains can be obtained from selection for these traits. Genetic and phenotypic correlations were observed between Fe and Zn concentrations. The lines CNFC 16627, CNFC 16518, CNFC 16602, CNFC 16615, and CNFC 16520 are superior based on the selection index and are recommended for breeding for grain quality in carioca common bean.

Bibliographic Details

Main Authors:	DIAS, P. A. S., ALMEIDA, D. V., MELO, P. G. S., PEREIRA, H. S., MELO, L. C.
Other Authors:	POLIANNA ALVES SILVA DIAS, UNVERSIDADE FEDERAL DE UBERLÂNDIA, MG; DANILO VALENTE ALMEIDA, UNIVERSIDADE FEDERAL DE GOIÁS; PATRICIA GUIMARAES SANTOS MELO, UNIVERSIDADE FEDERAL DE GOIÁS; HELTON SANTOS PEREIRA, CNPAF; LEONARDO CUNHA MELO, CNPAF.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-09-10
Subjects:	Feijão, Phaseolus Vulgaris, Melhoramento Genético Vegetal, Seleção, Variação Genética, Beans, Crude fiber, Cooking quality, Genetic stability, Yields, Genotype-environment interaction, Iron,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134210 https://doi.org/10.1002/csc2.20422
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