Data/hora: 10/06/2024 07:30:20

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | B - 1
Data corrente: | 21/09/2018
Data da última atualização: | 21/09/2018
Autoria: | SILVA, F. de C.; PEREIRA, H. S.; MELO, P. G. S.; MELO, L. C.
Afiliação: | FERNANDA DE CÁSSIA SILVA, UFG; HELTON SANTOS PEREIRA, CNPAF; PATRICIA GUIMARÃES SANTOS MELO, UFG; LEONARDO CUNHA MELO, CNPAF.
Título: | Selection of parents and segregating populations of common bean with high agronomic potential and slow seed-coat darkening.
Ano de publicação: | 2018
Fonte/Imprenta: | Pesquisa Agropecuária Tropical, v. 48, n. 1, p. 75-82, Jan./Mar. 2018.
ISSN: | 1983-4063
DOI: | 10.1590/1983-40632018v4849519
Idioma: | Inglês
Conteúdo: | Choosing parents and segregating populations are fundamental steps for the success in plant breeding. For the common bean crop, the development of genotypes that combine favorable agronomic traits and seed quality may increase the chances of adopting new cultivars. This study aimed to select promising parents and segregating populations to develop slow seed-coat darkening lines, together with high grain yield, lodging tolerance and short seed cooking time after storage, as well as to investigate the relationship between seed-coat darkening and seed cooking time after storage. Twenty segregating populations (F3, F4 and F5 generations) and their parents were evaluated. The sum of ranks index for combined traits was used in the selection of superior populations. Genetic and phenotypic correlations between seed-coat darkening and cooking time after storage were estimated. Among the parents, the BRSMG Madrepérola cultivar was the most promising to generate lines with seedcoat darkening. The superior populations were BRSMG Madrepérola x IPR Saracura, BRSMG Madrepérola x BRS Sublime, BRSMG Madrepérola x BRS Estilo and BRSMG Madrepérola x BRS Notável. A linear relationship was not found between seed-coat darkening and seed cooking time after storage, indicating that the first trait is not an adequate indicator to infer about seed cooking time.
Palavras-Chave: | População segregante.
Thesagro: | Escurecimento; Feijão; Grão; Índice de Seleção; Melhoramento Genético Vegetal; Phaseolus Vulgaris.
Thesaurus Nal: | Beans; Seed quality; Selection index.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/183332/1/CNPAF-2018-pat.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35266-1) - UPC - AP - DD - 2018 -  - 2018 - DIS