Response of common bean progenies for water use efficiency.

Our aim in this study was to evaluate common bean progenies for water use efficiency (WUE) and verify if selection carried out under conditions without water limitation reflects the selection carried out under stress conditions. Eighty progenies from the BRSMG Talismã x G4280 cross and 80 from the BRSMG Talismã x G6492 cross were evaluated with high water availability (HWA) and low water availability (LWA) in two locations and two years. Genetic variance, heritability, accuracy, expected gain from selection, correlated response to selection, genetic correlation between HWA and LWA and between the two traits evaluated, and risk index in the recommendation (RI) were estimated. Some progenies had a RI close to zero, were tolerant in LWA, and were responsive in HWA. Progenies with high grain yield and WUE could be identified. The two conditions of evaluation were equally efficient for selection, as verified by estimates of expected gains from selection.

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Bibliographic Details
Main Authors: LIMA, D. C., ABREU, A. de F. B., RAMALHO, M. A. P.
Other Authors: DAYANE CRISTINA LIMA, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; MAGNO ANTONIO PATTO RAMALHO, UFLA.
Format: Artigo de periódico biblioteca
Language:English
eng
Published: 2020-04-20
Subjects:Feijão, Phaseolus Vulgaris, Stress, Melhoramento Genético Vegetal, Beans, Abiotic stress, Grain yield, Plant breeding,
Online Access:http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121742
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