Data/hora: 06/06/2024 08:02:20

Biblioteca(s): 	Embrapa Arroz e Feijão.	
Data corrente: 	19/08/2005	
Data da última atualização: 	06/11/2006	
Autoria: 	BENIN, G.; HARTWIG, I.; CARVALHO, F. I. F. de; OLIVEIRA, A. C. de; VIEIRA, E. A.; BERTAN, I.; SILVA, J. A. da; VALÉRIO, I. P.; RIBEIRO, G.	
Título: 	Repeatability estimates of genetic, phenotypic and environmental correlations in oats with and without fungicide application.	
Ano de publicação: 	2005	
Fonte/Imprenta: 	Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 2, p. 183-190, June 2005.	
Idioma: 	Inglês	
Conteúdo: 	Estimates of associations among traits are not very precise when based on annual data since the year factor influence the phenotype strongly. The objective of this study was to estimate the repeatability coefficients and number of years needed for an accurate prediction of genetic, phenotypic and environmental correlations among six important traits (days from emergence to flowering, days from flowering to maturation, plant stature, grain yield, hectolitre weight and 1000-grain weight) in oat with and without fungicide application (treatments). Nine oat cultivars were evaluated for four years (2000, 2001, 2002 and 2003) with and without fungicide, in a random block design with three replications, in Rio Grande do Sul, Brazil. In the absence of fungicide, two years of trial evaluation were enough to provide reliable phenotypic and genetic correlation estimates; the same was not true for the experiments with fungicide application where at least seven (phenotypic) and 21 (genetic) years were required. In both treatments, the environmental correlation estimates were little predictable.
	
Palavras-Chave: 	Critério de seleção; G x E interaction; Indirect selection; Interação G x E; Predição; Predictability; Seleção indireta.	
Thesagro: 	Aveia; Avena Sativa.	
Thesaurus Nal: 	selection criteria.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPAF - (22905-1) - ADD - AP - -- - 631.05 - C - 2005.00378 - DIS