Data/hora: 23/06/2024 09:55:59

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 22/04/2020
Data da última atualização: | 22/04/2020
Autoria: | PIRES, L. P. M.; RAMALHO, M. A. P.; ABREU, A. de F. B.; FERREIRA, M. C.
Afiliação: | LUIZ PAULO MIRANDA PIRES, UFLA; MAGNO ANTONIO PATTO RAMALHO, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; MONICA CHRISTINA FERREIRA, ESALQ.
Título: | Recurrent mass selection for upright plant architecture in common bean.
Ano de publicação: | 2014
Fonte/Imprenta: | Scientia Agricola, v. 71, n. 3, p. 240-243, May/June, 2014.
ISSN: | 1678-992X
DOI: | 10.1590/S0103-90162014000300009
Idioma: | Inglês
Conteúdo: | Plant with a more upright architecture offers many advantages to farmers. Recurrent mass selection (RS) programs for carioca type common bean have been implemented for the purpose of obtaining new lines that will generate the high yields that are associated with upright plant archi tecture. This study aimed to assess the efficiency of recurrent mass selection (RS) for upright plant architecture in common bean (Phaseolus vulgaris) and the effect of RS on grain yield and to verify whether or not there is still variability in the population that favors continuing selection programs, using information obtained from progenies evaluated in cycle five (CV) and cycle eight (CVIII) of the RS program. Mass selection for more upright plants was performed visually in the "S0" generation before flowering. Progenies S and Swere evaluated in 2009 (CV) and 2011 (CVIII). Heritability (h2;) and RS progress were estimated using adjusted means. After eight selection cycles, the population subjected to RS still had enough genetic variability to achieve continued success through recurrent selection. The RS progress was 1.62 % per cycle for the growth habit scores and 6.81 % for grain yield.
Palavras-Chave: | Genetic progress.
Thesagro: | Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Seleção Recorrente.
Thesaurus Nal: | Beans; Genetic variation; Plant architecture; Plant breeding; Recurrent selection.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/212435/1/CNPAF-2014-SA.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35769-1) - UPC - AP - DD - 2014 -  - 2014 - DIS