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Papers by C. Akem

Research paper thumbnail of Integrated Management of Foliar Diseases in Vegetable Crops

Research paper thumbnail of Rapid Screening Method of Cassava Cultivars for Resistance to Colletotrichum gloeosporioides f. sp. manihotis

Journal of …, 2002

... 3rd edn. Burgess Publishing Co., Minneapolis, USA. 3 Boher, B., JF Danielle, G. Fabres, G. Ba... more ... 3rd edn. Burgess Publishing Co., Minneapolis, USA. 3 Boher, B., JF Danielle, G. Fabres, G. Bani (1983): Action de Pseudotheraptus devastans. Dist (Het. ... Voros, K. Solymosy (1974): Methods in Plant Pathology with Special Reference to Breeding for Resistance, p. 212. Elsevier. ...

Research paper thumbnail of In vitro, greenhouse and field assessments of cassava lines for resistance to anthracnose disease caused by Colletotrichum gloeosporioides f.sp. manihotis

Mycopathologia, 2002

Fifty-three cassava lines were selected from breeding populations at the International Institute ... more Fifty-three cassava lines were selected from breeding populations at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria and screened in vitro for resistance to cassava anthracnose disease (CAD). The in vitro inoculation of stem cuttings with the fungus Colletotrichum gloeosporioides f.sp. manihotis showed significant differences (p +/- 0.05) in acervuli production and in the sensitivity of the cassava lines to the fungal infection after 7 days of incubation at 25 degrees C. Cassava lines 88/01084, 91/00595, 91/00475, 91/00344, 91/00684, 91/00313, 91/00422, and 91/00344 were highly resistant, with necrotic lesion sizes less than 7 mm. In contrast pedigree lines 88/02549, 89/0008, 91/00390 and 91/00402 were highly susceptible with the largest necrotic lesion size being greater than 20 mm. Ten cassava lines from the in vitro screening that showed varying levels of resistance to CAD were selected, based on their flowering abilities for diallel hydridization tria...

Research paper thumbnail of Integrated Management of Foliar Diseases in Vegetable Crops

Research paper thumbnail of Rapid Screening Method of Cassava Cultivars for Resistance to Colletotrichum gloeosporioides f. sp. manihotis

Journal of …, 2002

... 3rd edn. Burgess Publishing Co., Minneapolis, USA. 3 Boher, B., JF Danielle, G. Fabres, G. Ba... more ... 3rd edn. Burgess Publishing Co., Minneapolis, USA. 3 Boher, B., JF Danielle, G. Fabres, G. Bani (1983): Action de Pseudotheraptus devastans. Dist (Het. ... Voros, K. Solymosy (1974): Methods in Plant Pathology with Special Reference to Breeding for Resistance, p. 212. Elsevier. ...

Research paper thumbnail of In vitro, greenhouse and field assessments of cassava lines for resistance to anthracnose disease caused by Colletotrichum gloeosporioides f.sp. manihotis

Mycopathologia, 2002

Fifty-three cassava lines were selected from breeding populations at the International Institute ... more Fifty-three cassava lines were selected from breeding populations at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria and screened in vitro for resistance to cassava anthracnose disease (CAD). The in vitro inoculation of stem cuttings with the fungus Colletotrichum gloeosporioides f.sp. manihotis showed significant differences (p +/- 0.05) in acervuli production and in the sensitivity of the cassava lines to the fungal infection after 7 days of incubation at 25 degrees C. Cassava lines 88/01084, 91/00595, 91/00475, 91/00344, 91/00684, 91/00313, 91/00422, and 91/00344 were highly resistant, with necrotic lesion sizes less than 7 mm. In contrast pedigree lines 88/02549, 89/0008, 91/00390 and 91/00402 were highly susceptible with the largest necrotic lesion size being greater than 20 mm. Ten cassava lines from the in vitro screening that showed varying levels of resistance to CAD were selected, based on their flowering abilities for diallel hydridization tria...

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