| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
28/11/2016 |
|
Data da última atualização: |
21/01/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ALVARES, R. C.; SILVA, F. C.; MELO, L. C.; MELO, P. G. S.; PEREIRA, H. S. |
|
Afiliação: |
R. C. ALVARES, UNIVERSIDADE FEDERAL DE GOIÁS; F. C. SILVA, UNIVERSIDADE FEDERAL DE GOIÁS; LEONARDO CUNHA MELO, CNPAF; PATRICIA G. S. MELO, UNIVERSIDADE FEDERAL DE GOIÁS; HELTON SANTOS PEREIRA, CNPAF. |
|
Título: |
Estimation of genetic parameters and selection of high-yielding, upright common bean lines with slow seed-coat darkening. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Genetics and Molecular Research, v. 15, n. 4, 2016. |
|
ISSN: |
1676-5680 |
|
DOI: |
10.4238/gmr15049081 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Slow seed coat darkening is desirable in common bean cultivars and genetic parameters are important to define breeding strategies. The aims of this study were to estimate genetic parameters for plant architecture, grain yield, grain size, and seed-coat darkening in common bean; identify any genetic association among these traits; and select lines that associate desirable phenotypes for these traits. Three experiments were set up in the winter 2012 growing season, in Santo Antônio de Goiás and Brasília, Brazil, including 220 lines obtained from four segregating populations and five parents. A triple lattice 15 x 15 experimental design was used. The traits evaluated were plant architecture, grain yield, grain size, and seed-coat darkening. Analyses of variance were carried out and genetic parameters such as heritability, gain expected from selection, and correlations, were estimated. For selection of superior lines, a ?weight-free and parameter-free? index was used. The estimates of genetic variance, heritability, and gain expected from selection were high, indicating good possibility for success in selection of the four traits. The genotype x environment interaction was proportionally more important for yield than for the other traits. There was no strong genetic correlation observed among the four traits, which indicates the possibility of selection of superior lines with many traits. Considering simultaneous selection, it was not possible to join high genetic gains for the four traits. Forty-four lines that combined high yield, more upright plant architecture, slow darkening grains, and commercial grade size were selected. MenosSlow seed coat darkening is desirable in common bean cultivars and genetic parameters are important to define breeding strategies. The aims of this study were to estimate genetic parameters for plant architecture, grain yield, grain size, and seed-coat darkening in common bean; identify any genetic association among these traits; and select lines that associate desirable phenotypes for these traits. Three experiments were set up in the winter 2012 growing season, in Santo Antônio de Goiás and Brasília, Brazil, including 220 lines obtained from four segregating populations and five parents. A triple lattice 15 x 15 experimental design was used. The traits evaluated were plant architecture, grain yield, grain size, and seed-coat darkening. Analyses of variance were carried out and genetic parameters such as heritability, gain expected from selection, and correlations, were estimated. For selection of superior lines, a ?weight-free and parameter-free? index was used. The estimates of genetic variance, heritability, and gain expected from selection were high, indicating good possibility for success in selection of the four traits. The genotype x environment interaction was proportionally more important for yield than for the other traits. There was no strong genetic correlation observed among the four traits, which indicates the possibility of selection of superior lines with many traits. Considering simultaneous selection, it was not possible to join high genetic gains for the ... Mostrar Tudo |
|
Thesagro: |
Feijão; Hereditariedade; Melhoramento genético vegetal; Parâmetro genético; Phaseolus vulgaris; Seleção. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150697/1/CNPAF-2016-gmr.pdf
|
|
Marc: |
LEADER 02461naa a2200265 a 4500
001 2057266
005 2019-01-21
008 2016 bl uuuu u00u1 u #d
022 $a1676-5680
024 7 $a10.4238/gmr15049081$2DOI
100 1 $aALVARES, R. C.
245 $aEstimation of genetic parameters and selection of high-yielding, upright common bean lines with slow seed-coat darkening.$h[electronic resource]
260 $c2016
520 $aSlow seed coat darkening is desirable in common bean cultivars and genetic parameters are important to define breeding strategies. The aims of this study were to estimate genetic parameters for plant architecture, grain yield, grain size, and seed-coat darkening in common bean; identify any genetic association among these traits; and select lines that associate desirable phenotypes for these traits. Three experiments were set up in the winter 2012 growing season, in Santo Antônio de Goiás and Brasília, Brazil, including 220 lines obtained from four segregating populations and five parents. A triple lattice 15 x 15 experimental design was used. The traits evaluated were plant architecture, grain yield, grain size, and seed-coat darkening. Analyses of variance were carried out and genetic parameters such as heritability, gain expected from selection, and correlations, were estimated. For selection of superior lines, a ?weight-free and parameter-free? index was used. The estimates of genetic variance, heritability, and gain expected from selection were high, indicating good possibility for success in selection of the four traits. The genotype x environment interaction was proportionally more important for yield than for the other traits. There was no strong genetic correlation observed among the four traits, which indicates the possibility of selection of superior lines with many traits. Considering simultaneous selection, it was not possible to join high genetic gains for the four traits. Forty-four lines that combined high yield, more upright plant architecture, slow darkening grains, and commercial grade size were selected.
650 $aFeijão
650 $aHereditariedade
650 $aMelhoramento genético vegetal
650 $aParâmetro genético
650 $aPhaseolus vulgaris
650 $aSeleção
700 1 $aSILVA, F. C.
700 1 $aMELO, L. C.
700 1 $aMELO, P. G. S.
700 1 $aPEREIRA, H. S.
773 $tGenetics and Molecular Research$gv. 15, n. 4, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 634 | |
| 6. |  | MELO, P. E. de. Melhoramento genético. In: HENZ, G. P.; ALCÂNTARA, F. A. de; RESENDE, F. V. (Ed).Produção orgânica de hortaliças: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Informações Técnologicas, 2007. p. 247-262. (Coleção 500 perguntas, 500 respostas).| Tipo: Capítulo em Livro Técnico-Científico | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Hortaliças. |
|   |
| 10. | | MELO, P. C. T. Produção de sementes de tomate. In: CURSO SOBRE TECNOLOGIA DE PRODUÇÃO DE SEMENTES DE HORTALIÇAS, 8., 2008, Brasília, DF. Palestras... Brasília, DF: Embrapa Hortaliças, 2008. CD-ROM.| Biblioteca(s): Embrapa Hortaliças. |
| |
| Registros recuperados : 634 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
