Data/hora: 11/06/2024 02:27:57

Provedor de dados: | 102
País: | Brazil
Título: | Variability in isolates of Puccinia polysora in Brazil
Autores: | CASELA,CARLOS R.; FERREIRA,ALEXANDRE S.
Data: | 2002-07-01
Ano: | 2002
Palavras-chave: | Southern rust; Virulence.
Resumo: | The main objective of this work was to evaluate the variability of the southern rust pathogen Puccinia polysora in Brazil, based on its virulence on a set of maize (Zea mays) cultivars. Sixty single pustule isolates, from different areas of occurrence of southern rust, were evaluated for their virulence to 50 maize experimental hybrids. Six cultivars showed a clear distinction between susceptible and resistant reaction, and were used to characterize the variability of the pathogen. Seventeen virulence patterns were identified among the 60 isolates tested. The most frequent virulence patterns identified, were observed in all locations of sampling, which suggests the absence of geographical differentiation among prevalent populations of P. polysora in Brazil.
Tipo: | Info:eu-repo/semantics/other
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582002000400015
Editor: | Sociedade Brasileira de Fitopatologia
Relação: | 10.1590/S0100-41582002000400015
Formato: | text/html
Fonte: | Fitopatologia Brasileira  v.27 n.4 2002
Fonte: | info:eu-repo/semantics/openAccess