Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Bragantia (2) Autor REGAZZI,ADAIR JOSÉ (2) VIANA,JOSÉ MARCELO SORIANO (2) Palavra-chave Covariance components (2) Genetic parameters (2) Quantitative genetics (2) Square lattice (2) Variance components (2) Joint analysis (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 1999 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Estimation of genetic parameters in the analysis of square lattice experiment group Bragantia VIANA,JOSÉ MARCELO SORIANO; REGAZZI,ADAIR JOSÉ. Aiming to demonstrate how to obtain unbiased estimates of genetic parameters of base populations, unaffected by genotype x environment effects, this paper presents the variance and covariance components of the intra-block analysis of a group of square lattice experiments and the estimators of the components associated to treatment effect. Random model and mixed models with environment effect fixed and other effects random are considered. In the analysis with treatments not corrected for blocks/replications/environments, the estimators of the variance and covariance components due to treatment effect are different from those of the analysis considering the complete block model. Data from two experiments of a breeding program of Eucalyptus pyrocarpa were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Quantitative genetics; Genetic parameters; Variance components; Covariance components; Joint analysis; Square lattice. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000100019 Estimation of genetic parameters in the square lattice analysis Bragantia VIANA,JOSÉ MARCELO SORIANO; REGAZZI,ADAIR JOSÉ. This paper shows how to obtain unbiased estimates of genetic parameters of base populations, e.g., genotypic variance among families, heritability on a family mean basis, genotypic correlation and direct and indirect expected genetic gains, when the sampled families were evaluated in square lattice experiment. The theoretical part presents the variance and covariance components of the intra-block analysis of square lattice and the estimators of the components associated to treatment effect, considering the ordinary least squares method. In the analysis with treatments not corrected for blocks/replications, the estimator of the component due to treatment effect is equal to that of the analysis considering the complete block model. Experimental data from a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Quantitative genetics; Genetic parameters; Variance components; Covariance components; Square lattice. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000100018 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco