02119naa a2200361 a 450000100080000000500110000800800410001910000200006024501670008026000090024752010880025665000170134465000110136165000130137265000170138565000170140265000150141965000190143465000120145365000350146565000220150065000180152265000100154065300170155065300110156765300200157865300190159870000210161770000250163870000150166370000190167877300600169715541051998-03-13       1997    bl ---       0--  u    #d1 aCHAKRABORTY, S.  aBiodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity.  c1997  aSelected 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.  abiodiversity  aBrazil  aColombia  aepidemiology  aStylosanthes  aAntracnose  aBiodiversidade  aCerrado  aColletotrichum Gloeosporioides  aDoença de Planta  aEpidemiologia  aFungo  aAnthracnosis  aBrasil  aFungal diseases  aPlant diseases1 aFERNANDES, C. D.1 aCHARCHAR, M. J. D'A.1 aKELEMU, S.1 aCAMERON, D. F.  tTropical Grasslands, Queenslandgv.31, p.408-416, 1997.