Data/hora: 12/06/2024 09:02:21

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 22/01/2014
Data da última atualização: | 17/05/2017
Autoria: | COSTA, R. V. da; COTA, L. V.; SILVA, D. D. da; PARREIRA, D. F.; CASELA, C. R.; LANDAU, E. C.; FIGUEIREDO, J. E. F.
Afiliação: | RODRIGO VERAS DA COSTA, CNPMS; LUCIANO VIANA COTA, CNPMS; DAGMA DIONISIA DA SILVA, CNPMS; ELENA CHARLOTTE LANDAU, CNPMS; JOSE EDSON FONTES FIGUEIREDO, CNPMS.
Título: | Races of Colletotrichum graminicola pathogenic to maize in Brazil.
Ano de publicação: | 2014
Fonte/Imprenta: | Crop Protection, Guildford, v. 56, p. 44-49, 2014.
DOI: | 10.1016/j.cropro.2013.10.005
Idioma: | Inglês
Conteúdo: | Anthracnose caused by the fungus Colletotrichum graminicola (Ces.) Wilson is the most important disease of maize in Brazil, especially in no-tillage without crop rotation. In this system, maize debris from earlier plantings increases the fungal inoculum potential over time. The use of genetic resistance is the most appropriate and advantageous strategy for anthracnose control. However, the effectiveness and durability of this practice depends on knowledge concerning the genetic variability of C. graminicola. In this study fifteen maize genotypes were tested against 190 single spore of C. graminicola collected from infected leaves of maize plants cultivated in seven different Brazilian ecogeographic areas. Five races of C. graminicola were identified, and eleven maize genotypes were susceptible to all isolates. Results indicated that both the number of pathogen isolates and the number of genotypes to be tested are pivotal for an accurate identification of C. graminicola races. This is the first study showing the occurrence of C. graminicola races in Brazil.
Thesagro: | Antracnose; Doença de planta.
Thesaurus Nal: | Anthracnose; Plant diseases and disorders.
Categoria do assunto: | --
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (25614-1) - UPC - AP - DD -  -  -  - DIS