Data/hora: 04/06/2024 02:31:53

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Interference of genotypes x environments interaction in the genetic control of resistance to Asian rust soybean	
Autores: 	Ribeiro,Aliny Simony; Toledo,José Francisco Ferraz de; Ramalho,Magno Antonio Patto.	
Data: 	2009-09-01	
Ano: 	2009	
Palavras-chave: 	Glycine max; Phakopsora pachyrhizi; General combining ability; Specific combining ability.	
Resumo: 	The objectives of this work were to identify parents resistant to Asian soybean rust using diallel crosses, obtain information on the genetic control of soybean resistance to the pathogen and verify whether the combining ability estimates interact with the environment (year or time of assessment). The F1 generation was obtained in a greenhouse from crosses between five contrasting parents for the trait resistance to soybean rust, in a complete diallel without reciprocals. Two rust-severity assessments were carried out on individual soybean plants of 25 treatments (parents and F2 and F3 populations) in 2006/2007 and 2007/2008, in an experimental field at Embrapa Soja, Londrina, PR, Brazil. Additive effects predominated in the genetic control of soybean resistance to Asian rust, and the interaction of the segregant populations with the environment, although significant, did not alter the genetic parameter's general combining ability (GCA) and specific combining ability estimates, indicating that estimates obtained in one year and one assessment can be extrapolated to others. BR01-18437 inbred line is resistant to Asian rust and showed high GCA effects. This line should be used as parent if the objective is the resistance to Phakopsora pachyrhizi.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000900014	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2009000900014	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.44 n.9 2009	
Fonte: 	info:eu-repo/semantics/openAccess