Data/hora: 03/06/2024 09:14:28

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 05/10/2004
Data da última atualização: | 19/08/2019
Autoria: | ROYER, M. R.; GONÇALVES-VIDIGAL, M. C.; SCAPIM, C. A.; VIDIGAL FILHO, P. S.; TERADA, Y.
Afiliação: | MARCIA REGINA ROYER; MARIA CELESTE GONÇALVES-VIDIGAL; CARLOS ALBERTO SCAPIM; PEDRO SOARES VIDIGAL FILHO; YOKO TERADA.
Título: | Outcrossing in common bean.
Ano de publicação: | 2002
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 1, p. 49-54, Mar. 2002.
Idioma: | Inglês
Conteúdo: | Jalo Precoce, Pérola, Carioca and Michelite cultivars of Common Bean (Phaseolus vulgaris L.) were used to estimate natural hybridization rates. Two experiments were carried out, one in the "wet"season and the other in the 1997/1998 "fall-winter" season. Randomized complete blocks in a split plot scheme were used, with three replications. Four row spacings (0.20 m, 0.40 m. 0.60 m and 0.80 m) were randomized within the plots. Cultivars with a recessive genetic trait were planted in subplots, in alternate rows, with the IAPAR 44 cultivar, which has vilet flowers and hypocotyl determined by dominant genes. In the "wet" season the Jalo Precoce , Pérola, Carioca and Michelite cultivars had average natural hybridization rates of 1.23, 1.34, 1.25 and 0,71%, respectively. The mean percentages were 0.82, 0.75, 0.79 and 0.76% for Jalo Precoce, Pérola, Carioca and Michelite cultivars in the "fall-winter" season, respectively. The estimates of natural hybridization had magnitudes which ranged from 0.71 to 1.66%.
Palavras-Chave: | Common bean; Cross-pollination; Hibridização natural; Melhoramento genético.
Thesagro: | Cruzamento; Feijão; Phaseolus Vulgaris.
Thesaurus Nal: | hybridization.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (21673-1) - ADD - AP - DD - 2002 -  - 2002 - DIS