Data/hora: 04/06/2024 04:45:50

Provedor de dados: 	Pesquisa Agropecuária Brasileira	
País: 	Brazil	
Título: 	Genetic parameters and simultaneous selection for root yield, adaptability and stability of cassava genotypes	
Autores: 	Farias Neto,João Tomé de; Moura,Elisa Ferreira; Resende,Marcos Deon Vilela de; Celestino Filho,Pedro; Augusto,Sebastião Geraldo.	
Data: 	2013-12-01	
Ano: 	2013	
Palavras-chave: 	Manihot esculenta; Genotype x environment interaction; HMRPGV; REML/Blup.	
Resumo: 	The objective of this work was to estimate genetic parameters and to evaluate simultaneous selection for root yield and for adaptability and stability of cassava genotypes. The effects of genotypes were assumed as fixed and random, and the mixed model methodology (REML/Blup) was used to estimate genetic parameters and the harmonic mean of the relative performance of genotypic values (HMRPGV), for simultaneous selection purposes. Ten genotypes were analyzed in a complete randomized block design, with four replicates. The experiment was carried out in the municipalities of Altamira, Santarém, and Santa Luzia do Pará in the state of Pará, Brazil, in the growing seasons of 2009/2010, 2010/2011, and 2011/2012. Roots were harvested 12 months after planting, in all tested locations. Root yield had low coefficients of genotypic variation (4.25%) and broad-sense heritability of individual plots (0.0424), which resulted in low genetic gain. Due to the low genotypic correlation (0.15), genotype classification as to root yield varied according to the environment. Genotypes CPATU 060, CPATU 229, and CPATU 404 stood out as to their yield, adaptability, and stability.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001200005	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2013001200005	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.48 n.12 2013	
Fonte: 	info:eu-repo/semantics/openAccess