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Journal Article 2003-03

Autor: Ogbe, F.O. Thottappilly, G. Dixon, Alfred G.O. Atiri, G.I. Mignouna, H.D.

In a survey for cassava mosaic begomoviruses conducted in 1997 and 1998 in Nigeria, East African cassava mosaic virus (EACMV) was detected by the polymerase chain reaction together with African cassava mosaic virus (ACMV) in 27 out of 290 cassava leaf samples of infected plants from 254 farmers' ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96370

Investigación en Agricultura
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Ogbe, F.O. ,  Thottappilly, G. ,  Dixon, Alfred G.O. ,  Atiri, G.I. ,  Mignouna, H.D. ,  [Variants of East African cassava mosaic virus and its distribution in double infections with African cassava mosaic virus in Nigeria] ,  Variants of East African cassava mosaic virus and its distribution in double infections with African cassava mosaic virus in Nigeria
Journal Article 2003-02

Autor: Ogbe, F. Atiri, G. Dixon, Alfred G.O. Thottappilly, G.

The concentration of African cassava mosaic virus (ACMV) was assessed by enzyme-linked immunosorbent assay in relation to symptom severity among resistant, moderately resistant and susceptible cassava genotypes. Resistant genotype NR 8083 had significantly lower symptom severity scores (P < 0·05)...

Enlace original: https://cgspace.cgiar.org/handle/10568/96322

Investigación en Agricultura
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Ogbe, F. ,  Atiri, G. ,  Dixon, Alfred G.O. ,  Thottappilly, G. ,  [Symtom severity of cassava mosaic disease in relation to concentration of African cassava mosaic virus in different cassava genotypes] ,  Symtom severity of cassava mosaic disease in relation to concentration of African cassava mosaic virus in different cassava genotypes
Journal Article 2003-10

Autor: Ogbe, F.O. Atiri, G.I. Dixon, Alfred G.O. Thottappilly, G.

To determine the occurrence of variants of African cassava mosaic virus, 316 cassava leaf samples were collected from mosaic-affected cassava plants in 254 farmers. fields in 1997 and 1998, covering the humid forest, coastal/derived, southern Guinea and northern Guinea savannas and arid and semi-...

Enlace original: https://cgspace.cgiar.org/handle/10568/96341

Investigación en Agricultura
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Ogbe, F.O. ,  Atiri, G.I. ,  Dixon, Alfred G.O. ,  Thottappilly, G. ,  [Serological and biological variations of African cassava mosaic virus in Nigeria] ,  Serological and biological variations of African cassava mosaic virus in Nigeria
Journal Article 2003-11

Autor: Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I.

The consequence of harvesting young leaves of cassava as vegetable on the vulnerability of the crop to cassava mosaic disease (CMD) and on storage root yield was investigated using 30 cassava genotypes planted in IITA fields located in the humid forest (Port Harcourt : Onne), forest-savannah tran...

Enlace original: https://cgspace.cgiar.org/handle/10568/96377

Investigación en Agricultura
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Ariyo, O.A. ,  Dixon, Alfred G.O. ,  Atiri, G.I. ,  [Cassava leaf harvesting as vegetables: a cause of vulnerability of cassava plants to cassava mosaic disease and eventual yield reduction] ,  Cassava leaf harvesting as vegetables: a cause of vulnerability of cassava plants to cassava mosaic disease and eventual yield reduction
Journal Article 2003

Autor: Dixon, Alfred G.O. Bandyopadhyay, Ranajit Coyne, D.L. Ferguson, M. Ferris, R.S.B. Hanna, R. Hughes, J. Ingelbrecht, I. Legg, J.P. Mahungu, N.M. Manyong, Victor M. Mowbray, D. Neuenschwander, P. Whyte, J. Hartmann, P. Ortiz, R.

Cassava(Manihot esculenta), a root crop originating in Tropical America, has been called Africa’s food insurance but vital as that is, it has the potential to be much more. Already, cassava provides more than half of the dietary calories for over 200 million people in sub-Saharan Africa (about ha...

Enlace original: https://cgspace.cgiar.org/handle/10568/96342

Investigación en Agricultura
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Dixon, Alfred G.O. ,  Bandyopadhyay, Ranajit ,  Coyne, D.L. ,  Ferguson, M. ,  Ferris, R.S.B. ,  Hanna, R. ,  Hughes, J. ,  Ingelbrecht, I. ,  Legg, J.P. ,  Mahungu, N.M. ,  Manyong, Victor M. ,  Mowbray, D. ,  Neuenschwander, P. ,  Whyte, J. ,  Hartmann, P. ,  Ortiz, R. ,  [Cassava: from poor farmers crop to pacesetter of African rural development] ,  Cassava: from poor farmers crop to pacesetter of African rural development
Journal Article 2001

Autor: Fokunang, C.N. Dixon, Alfred G.O. Ikotun, T. Tembe-Fokunang, E.A. Akem, C.N. Asiedu, Robert

Cassava anthracnose disease (CAD) caused by the fungus Colletotrichum gloeosporioides f.sp. manihotis has become one of the major economic diseases of cassava in Africa. The expansion of cassava production farmlands particularly in the humid rainfall zones of West and Central Africa has led to an...

Enlace original: https://cgspace.cgiar.org/handle/10568/97197

Investigación en Agricultura
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Fokunang, C.N. ,  Dixon, Alfred G.O. ,  Ikotun, T. ,  Tembe-Fokunang, E.A. ,  Akem, C.N. ,  Asiedu, Robert ,  [Anthracnose: an economic disease of cassava in Africa] ,  Anthracnose: an economic disease of cassava in Africa
Journal Article 2002

Autor: Dixon, Alfred G.O. Ngeve, JM Nukenine, EN

Eight improved cassava ( Manihot esculenta check for this species in other resources Crantz) genotypes and one local variety were grown over three years in three agro-ecological zones of Nigeria, to study their response to natural infestations of African cassava mosaic disease (ACMD), cassava ba...

Enlace original: https://cgspace.cgiar.org/handle/10568/44047

Investigación en Agricultura
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Dixon, Alfred G.O. ,  Ngeve, JM ,  Nukenine, EN ,  [Response of cassava genotypes to four biotic constraints in three agro-ecologies of Nigeria] ,  Response of cassava genotypes to four biotic constraints in three agro-ecologies of Nigeria
Journal Article 2000

Autor: Fokunang, C.N. Ikotun, T Dixon, Alfred G.O. Akem, C.N.

Thirteen cassava genotypes were evaluated at the International Institute of Tropical Agriculture, Ibadan, Nigeria for anthracnose (CAD), bacterial blight (CBB) and cassava mosaic disease (CMD) incidence and severity, and their effects on yield, for three consecutive planting seasons. There were s...

Enlace original: https://cgspace.cgiar.org/handle/10568/43458

Investigación en Agricultura
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Fokunang, C.N. ,  Ikotun, T ,  Dixon, Alfred G.O. ,  Akem, C.N. ,  [Field reaction of cassava genotypes to anthranose, bacterial blight, cassava mosaic disease and their effects on yield] ,  Field reaction of cassava genotypes to anthranose, bacterial blight, cassava mosaic disease and their effects on yield

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