Data/hora: 10/06/2024 17:09:57

Biblioteca(s): | Embrapa Arroz e Feijão; Embrapa Milho e Sorgo; Embrapa Semiárido.
Data corrente: | 08/10/2014
Data da última atualização: | 09/10/2014
Autoria: | FARIA, L. C. de; MELO, P. G. S.; PEREIRA, H. S.; WENDLAND, A.; BORGES, S. F.; PEREIRA FILHO, I. A.; CABRERA DIAZ, J. L.; CALGARO, M.; MELO, L. C.
Afiliação: | LUIS CLAUDIO DE FARIA, CNPAF; PATRÍCIA GUIMARÃES SANTOS MELO, UFG; HELTON SANTOS PEREIRA, CNPAF; ADRIANE WENDLAND FERREIRA, CNPAF; SIMONE BORGES FERREIRA, EMATER-GO; ISRAEL ALEXANDRE PEREIRA FILHO, CNPMS; JOSE LUIS CABRERA DIAZ, CNPAF; MARCELO CALGARO, CPATSA; LEONARDO CUNHA MELO, CNPAF.
Título: | Genetic progress during 22 years of black bean improvement.
Ano de publicação: | 2014
Fonte/Imprenta: | Euphytica, Wageningen, v. 199, n. 3, p. 261-272, Oct. 2014.
DOI: | 10.1007/s10681-014-1135-z
Idioma: | Inglês
Conteúdo: | The common bean breeding program coordinated by Embrapa Arroz e Feijão released 50 new cultivars from 1984 to 2010. The aim of the present study was to estimate genetic progress in terms of seed yield and other agronomic traits achieved by the black-type common bean breeding program in Brazil over the 22-year period from 1985 to 2006. Two types of field experiments were performed to assess genetic progress. In regard to experiments on lines, the three best breeding lines from each of 11 evaluation cycles constituted 33 treatments. These evaluations were made in 20 environments and served to estimate progress in seed yield and seed size because these were the criteria applied in selecting the elite lines. Cultivar evaluations included nine cultivars recommended by Embrapa during the period under investigation, and the evaluations were established in 21 environments. These evaluations served to estimate improvements in reaction to angular leaf spot, plant architecture and tolerance to lodging because cultivars usually exhibit superior phenotypes for such characteristics. Evaluations were performed from 2008 to 2010. Estimated improvement in seed yield was 25.2 kg ha-1 or 1.1 % per year. Improvements were also found in tolerance to lodging (1.7 % per year) and 100-seed weight (0.65 % per year). There was no significant progress for the plant architecture and resistance to angular leaf spot traits.
Thesagro: | Características agronômicas; Feijão; Feijão preto; Melhoramento genético vegetal; Phaseolus vulgaris; Produtividade; Semente.
Thesaurus Nal: | Agronomic traits; Beans; Plant breeding; Seed yield.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Arroz e Feijão (CNPAF)

Exemplares:

CNPMS - (26187-1) - UPC - AP - DD -  -  -  - DIS
CNPAF - (33016-1) - UPC - AP - DD - 2014.059 -  - 2014.059 - DIS
CPATSA - (53757-1) - UPC - AP - DD -  -  -  - DIS