Data/hora: 24/06/2024 05:25:27

Biblioteca(s): | Embrapa Arroz e Feijão.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 18/01/2018
Data da última atualização: | 18/01/2018
Autoria: | MARTINS, E. S.; PINTO JÚNIOR, R. A.; ABREU, A. F. B.; RAMALHO, M. A. P.
Afiliação: | E. S. MARTINS, ESALQ; R. A. PINTO JUNIOR, UFLA; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; MAGNO A. P. RAMALHO, UFLA.
Título: | Genetic control of number of flowers and pod set in common bean.
Ano de publicação: | 2017
Fonte/Imprenta: | Genetics and Molecular Research, v. 16, n. 3, gmr16039723, Sept. 2017.
ISSN: | 1676-5680
DOI: | 10.4238/gmr16039723
Idioma: | Inglês
Conteúdo: | This article aimed to study the genetic control of some flowers and pod set of common bean and to verify if its estimate varies with environmental conditions and gene pool. A complete diallel was used among six lines, but no reciprocal ones. The treatments were evaluated in three harvests/generations - F2, F3, and F4 - in 2015/2016, in a randomized complete block design with four replications. The plot consisted of 3 lines with 4 m. In the center line, a receptacle to collect the aborted flowers/pods was placed. The traits considered were the number of flowers/plant (N), the percentage of pod set (V), and the production of grain/plant (W). A joint diallel analysis was performed, and the correlations between N, V, and W were estimated. N was 31.9 on average, and V was 40.4%. The average of Mesoamerican parents, for N and V, was higher than for Andean. Specific combining ability explained most of the variation for N, evidencing predominance of dominance effect. For V, specific combining ability was slightly lower than general combining ability, indicating additive loci and also dominance effects. These two traits were very influenced by environment and should be considered a strategy for greater grain yield stability of common bean.
Palavras-Chave: | Grain production.
Thesagro: | Feijão; Melhoramento genético vegetal; Phaseolus vulgaris.
Thesaurus Nal: | Beans; Diallel analysis; Gene pool; Plant breeding; Quantitative genetics.
Categoria do assunto: | G Melhoramento Genético
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/171284/1/CNPAF-2017-abreu.pdf
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (35127-1) - UPC - AP - DD - 2017 -  - 2017 - DIS