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A wilt and eventual dieback disease ot the forage legume Stylosanthes guianens which occurs widely in Colombia and Brazil, is described. The causal agent of the wilt disease is identified as Lasiodiplodia theobromae, a virulent, unspeciaIized, facultative, wound pathogen with worldwide distributi...


Kelemu, SegenetBadel, JLFernandes, C.D.[A new dieback disease of the forage legume Stylosanthes guianensis in South America]A new dieback disease of the forage legume Stylosanthes guianensis in South America

Data were collected and analysed from seven field sites in Australia, Brazil and Colombia on weather conditions and the severity of anthracnose disease of the tropical pasture legume Stylosanthes scabra caused by Colletotrichum gloeosporioides. Disease severity and weather data were analysed usin...


Chakraborty, S.Ghosh, R.Ghosh, M.Fernandes, C.D.Charchar, Maria JoséKelemu, Segenet[Weather-based prediction of anthracnose severity using artificial neural network models]Weather-based prediction of anthracnose severity using artificial neural network models

Using molecular markers, this work compares the genetic diversity in Colletotrichum gloeosporioides infecting species of the tropical forage legume Stylosanthes at the center of origin in Brazil and Colombia with that of Australia, China, and India, where Stylosanthes spp. have been introduced fo...


Weeds, P.L.Chakraborty, S.Fernandes, C.D.Charchar, Maria JoséRamesh, C.R.Kexian, Y.Kelemu, Segenet[Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at centers of origin and utilization]Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at centers of origin and utilization

Selected lines of Stylosanthes guianensis, S scabra, S. capitata and S. macrocephala were established at field sites at Planaltina and Campo Grande in Brazil and at Carimagua and Caquetá in Colombia. Weather conditions at each site were monitored continuously using an automatic weather station. D...


Chakraborty, S.Fernandes, C.D.Charchar, Maria JoséKelemu, SegenetCameron, DF[Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity]Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity

The degree of genetic diversity of 127 Colletotrichum gloeosporioides isolates from Stylosanthes guianensis genotypes in South America was measured at the molecular level by random amplified polymorphic DNA (RAPD) with nine arbitrary primers of 10 bases, and by restriction fragment length polymor...


Kelemu, SegenetSkinner, DZBadel, JLMoreno, CXRodríguez, M.X.Fernandes, C.D.Charchar, Maria JoséChakraborty, S.[Genetic diversity in South American Colletotrichum gloeosporioides isolates from Stylosanthes guianensis, a tropical forage legume]Genetic diversity in South American Colletotrichum gloeosporioides isolates from Stylosanthes guianensis, a tropical forage legume

Anthracnose, caused by Colletotrichum gloeosporioides, is the most important and widespread disease of Stylosanthes, a diverse tropical and subtropical forage legume naturally distributed in central and South America. This paper compares the genetic and pathogenic diversity of 45 isolates, which ...


Kelemu, SegenetBadel, JLMoreno, CXMiles, John W.Chakraborty, S.Fernandes, C.D.Charchar, Maria José[Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. Genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianensis]Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. Genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianensis
Chakraborty, S.Cameron, DFBoland, RKelemu, SegenetFernandes, C.D.Charchar, Maria José[Risk of serious anthracnose damage to stylo cultivars]Risk of serious anthracnose damage to stylo cultivars

Using molecular markers, this work compares the genetic diversity in Colletotrichum gloeosporioides infecting species of the tropical forage legume Stylosanthes at the center of origin in Brazil and Colombia with that of Australia, China, and India, where Stylosanthes spp. have been introduced fo...


Weeds, P.L.Chakraborty, S.Fernandes, C.D.Charchar, Maria JoséRamesh, CRKexian, YKelemu, Segenet[Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at centers of origin and utilization]Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at centers of origin and utilization

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