Data/hora: 20/06/2024 17:13:51

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 13/03/1998
Data da última atualização: | 13/03/1998
Autoria: | CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. D'A.; KELEMU, S.; CAMERON, D. F.
Título: | Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity.
Ano de publicação: | 1997
Fonte/Imprenta: | Tropical Grasslands, Queensland, v.31, p.408-416, 1997.
Idioma: | Inglês
Conteúdo: | Selected lines of Stylosanthes guianensis, S. scabra, S. capitata and S. macrocephala were established at field sites at Planaltina and Campo Grande in Brasil and at Carimagua and Caqueta in Colombia. Weather conditions at each site were monitored continously using an automatic weather station. Data on anthracnose severity caused by Colletotrichum gloeosporioides were collected by visually assessing these lines at monthly intervals and analysed to study disease progress on susceptible and resistant lines in relation to weather variables. Anthracnose was most severe at Planaltina, followed by Carimagua, Campo Grande and Caqueta. S. scabra cv. Fitzroy, susceptible to all Australian races of C. gloeosporioides, was not the most susceptible at Carimagua and Caqueta. Relationships between anthracnose severity and weather variables were explored using multiple regression analysis. These explained between 30 and 95% of the variation in the severity of antracnose on Fitzroy at the 4 sites. The study highlights the need for improved understanding of antharacnose epidemiology.
Palavras-Chave: | Anthracnosis; Brasil; Fungal diseases; Plant diseases.
Thesagro: | Antracnose; Biodiversidade; Cerrado; Colletotrichum Gloeosporioides; Doença de Planta; Epidemiologia; Fungo.
Thesaurus Nal: | biodiversity; Brazil; Colombia; epidemiology; Stylosanthes.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (11023-1) - UPC - SP - -- - CRI4513 -  - CRI4513 - DIS