Data/hora: 09/06/2024 04:48:41

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 18/08/2005
Data da última atualização: | 06/10/2005
Autoria: | MOURA, M. F.; PINHEIRO, J. B.; MORAIS, L. K. de; MOURA, N. F.; AGUIAR, A. V.; CHAVES, L. J.; VENCOVSKY, R.; ZUCCHI, M. I.
Título: | Interaction genotypes x sowing periods in experimental F9:2 soybean lines.
Ano de publicação: | 2004
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 4, n. 4, p. 452-458, Dec. 2004.
Idioma: | Inglês
Conteúdo: | The magnitude of G x S interaction was measured by different biometric techniques to draw inferences on improvement strategies for soyabean. Twenty-five highly homozygotic (F9:2) soyabean lines were evaluated in three sowing periods (11 September, 21 October, and 12 November 1998) in Goias, Brazil. The controls IAC-100, OCEPAR-4, MTBR-45, and EMGOPA-313 were used. Number of days to flowering and to maturity, grain filling period, stained seeds, weight of a hundred seeds and the grain yield (GY) were evaluated. The complex part was predominant in the partition of this interaction. In relation to the selection gain for GY, a mean reduction of 10% is expected in comparison to a selection realized in period 2 only with specific selections per period, admitting a selection intensity of 40%. A reduction of 28% is expected under a selection intensity of 20%. The selection of more generalist genotypes is possible, although it leads to losses in mean terms.
Palavras-Chave: | Juvenile period; Período juvenil; Produtividade de grãos; Resistance to insects; Resistência a insetos.
Thesagro: | Glycine Max; Soja.
Thesaurus Nal: | grain yield.
Categoria do assunto: | --
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (22872-1) - ADD - AP - -- - 631.05 - C - 2004.00346 - DIS