Investigation of inoculum threshold and latent infection in Colletotrichum gloeosporiodes f. sp. manihotis in cassava cultivars

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dc.creatorFokunang, C.N.
dc.creatorAkem, C.
dc.creatorIkotun, T.
dc.creatorTembe-Fokunang, E.A.
dc.creatorKoona, P.
dc.creatorDixon, A.
dc.date2000
dc.date2019-03-03T05:53:49Z
dc.date2019-03-03T05:53:49Z
dc.date.accessioned2026-06-27T15:53:07Z
dc.descriptionStudies were conducted at the advance pathology laboratory and glasshouse at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, to determine the inoculums threshold of fungal suspensions at different concentration levels, and also to investigate latent infection of cassava anthracnose disease pathogen, (colletotrichum gloeosporioides f. sp. Manihotis), in cassava cultivars. This study showed that fungal suspension could initiate disease infection at very low inoculums concentration of 3.3 x 10 colony forming units (CFU)/ml of sterile distilled water. There was a general increase in percentage leaf infection and defoliation in the cassava cultivars with increase in inoculums concentration and incubation period. Symptomless cassava plant materials after incubation at 25-2c for seven days showed the presence of acervuli of anthracnose fungus in more than 80% of the cassava cultivars. This was an indication that symptomless cassava materials contain C. gloeosporiodes f. sp. Manihotis that can only manifest itself under favourable environmental conditions during the course of growth and development of the host plant.
dc.identifierhttps://hdl.handle.net/10568/99880
dc.identifier.urihttp://hdl.handle.net/123456789/116372
dc.languageen
dc.rightsLimited Access
dc.sourceFokunang, C., Akem, C., Ikotun, T., Tembe, E., Koona, P. & Dixon, A. (2000). Investigation of inoculum threshold and latent infection in Colletotrichum gloeosporiodes f. sp. manihotis in cassava cultivars. Pakistan Journal of Biological Sciences, 3(5), 713-716.
dc.subjectcassava
dc.subjectfoods
dc.subjectpathogens
dc.titleInvestigation of inoculum threshold and latent infection in Colletotrichum gloeosporiodes f. sp. manihotis in cassava cultivars
dc.typeJournal Article

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