Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/43462
Título: Inheritance of resistance to Fusarium oxysporum f. sp. phaseoli Brazilian race 2 in common bean
Título(s) alternativo(s): Controle genético da resistência à raça brasileira 2 de Fusarium oxysporum f. sp. phaseoli no feijoeiro
Palavras-chave: Phaseolus vulgaris
Fusarium wild
Disease resistance
Murcha de Fusarium
Feijão - Resistência a doenças
Data do documento: 2020
Editor: Escola Superior de Agricultura "Luiz de Queiroz"
Citação: PEREIRA, M. J. Z.; RAMALHO, M. A. P.; ABREU, A. de F. B. Inheritance of resistance to Fusarium oxysporum f. sp. phaseoli Brazilian race 2 in common bean. Scientia Agricola, Piracicaba, v. 66, n. 6, p.788-792, Nov./Dec. 2009.
Resumo: Aiming to obtain information concerning the genetic control of the resistance of the bean (Phaseolus vulgaris L.) to the fungus Fusarium oxysporum f. sp. phaseoli, six crosses involving three resistant lines (Carioca MG, Esal 583 and Esal 566) and four susceptible to the fungus (Carioca, CNFC 10443, Uirapuru and Esal 522) were developed. The parental lines, the controls (Carioca MG and Carioca) and the F1, F2 and F3 generations were evaluated for reaction to Fusarium. For inoculation, root cuttings were immersed in a spore suspension. The evaluations were performed at 21 days after inoculation, by scale of notes ranging from 1.0, to 9.0 and genetic and phenotypic parameters were estimated. The heritability in the narrow sense ranged from 0.34 to 0.42 and in the broad sense of 0.76 to 0.97, showing that selection should be easy, since efficient inoculation and selection methods are used. The average degree of dominance was around 1.0 indicating the presence of dominance in the control of the character, although additive effects are also expressive.
URI: http://repositorio.ufla.br/jspui/handle/1/43462
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