Data/hora: 29/05/2024 04:47:06

Provedor de dados: | 63
País: | Brazil
Título: | Inheritance of resistance to Fusarium oxysporum f. sp. phaseoli Brazilian race 2 in common bean
Autores: | Pereira,Mônica Juliani Zavaglia; Ramalho,Magno Antonio Patto; Abreu,Ângela de Fátima Barbosa.
Data: | 2009-12-01
Ano: | 2009
Palavras-chave: | Phaseolus vulgaris; Fusarium wild; Disease resistance.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600010
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162009000600010
Formato: | text/html
Fonte: | Scientia Agricola  v.66 n.6 2009
Fonte: | info:eu-repo/semantics/openAccess