Data/hora: 19/06/2024 18:48:44

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 27/10/2004
Data da última atualização: | 04/11/2004
Autoria: | HARADA, A.; DESTRO, D.; FONSECA JÚNIOR, N. da S.
Título: | Cultivar x day period interaction effects on soybean artificial cross efficiency.
Ano de publicação: | 2003
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 3, n. 1, p. 45-48, Mar. 2003.
Idioma: | Inglês
Conteúdo: | Efficiency of artificially crossing soybean germplasm was investigated using the BR-16, CD 201 and CD 206 cultivars, which are recommended for cropping in Paraná state, Brazil. The BR-16 x CD 206 and CD 201 x CD 206 hybridizations were carried out at seven different day of times: 8.30 am, 10.00 am, 11.30 am, 1.00 pm, 2.30 pm, 4.00 pm and 5.30 pm under controlled conditions in a greenhouse, in the town of Cambé, northern Paraná state. A randomized complete block design with six replications and treatments in split plots was used. The results indicated that the efficiency, evaluated as percentage of successful pollinations, depended exclusively on the female parent genotype. The BR-16 cultivar requires more careful handling during artificial hybridization because its percentage of successful pollination was consistently lower than that of CD 201. The data confirmed the possibility of conducting artificial hybridizations in soybean throughout the day under controlled conditions in a greenhouse, increasing the effective capacity of carrying out a large number of hybrid combinations.
Palavras-Chave: | Artificial hybridization; Day time; Soybean; Successful pollination.
Thesagro: | Glycine Max; Soja.
Thesaurus Nal: | hybridization.
Categoria do assunto: | --
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (21796-1) - ADD - AP - -- - 631.05 - C - 2004.00144 - DIS