Data/hora: 19/06/2024 18:14:53

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	19/08/2002	
Data da última atualização: 	08/10/2004	
Autoria: 	MONTALVÁN, R.; ANDO, A.	
Título: 	An alternative index for mutagenic efficiency.	
Ano de publicação: 	2001	
Fonte/Imprenta: 	Crop Breeding and Applied Biotechnology, Londrina, v. 1, n. 3, p. 277-281, Sept. 2001.	
Idioma: 	Inglês	
Conteúdo: 	Mutagenic efficiency was defined by Konzak et al. in 1965 as the ration mutation / biological damage factor. His formula considers that mutagens always causes damage, but it has been shown that low doses of gamma-rays stimulate seedling growth. In this situation a negative value for damage is obtained with a negative mutagenic efficiency rate. This has no biological interpretation and the notion of range for mutagenic efficiency variation is also lost. An alternative index for mutagenic efficiency, which is a modification of the Konzak et al. 1965 formula, is proposed [mutation factor (1-damage/100]. This index is more general, with known limits and positive results, thus overcoming some of the limitations found in the original formula.	
Palavras-Chave: 	EficIência mutagênica; Mutagenic efficiency.	
Thesaurus Nal: 	mutation.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (19234-1) - ADD - AP - -- - 631.05 - C - 2001.00030 - DIS