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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
Conference Paper 2003

Autor: Ogbe, F. Atiri, G. Thottappilly, G. Dixon, A.

Highlights are presented on the status of knowledge about cassava mosaic disease (CMD) and its causal agents in Nigeria. The disease occurs in all the agroecologies where cassava is grown, from the humid forest in the south to the semiarid and arid agroecologies in the north. The severity is gene...

Enlace original: https://cgspace.cgiar.org/handle/10568/96506

Investigación en Agricultura
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Ogbe, F. ,  Atiri, G. ,  Thottappilly, G. ,  Dixon, A. ,  [Cassava mosaic disease and its causal agents: the Nigeria situation] ,  Cassava mosaic disease and its causal agents: the Nigeria situation
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 1996

Autor: Njock, T.E. Atiri, G.I. Thottappilly, G. Thresh, J.M.

(ACMV) were assessed in shoots regenerated from single-node cuttings of three cassava genotypes differing in resistance to ACMV. Plants of the moderately resistant TMS 4(2)1425 and susceptible TMS 60506 did not recover from the disease as rapidly as those of the resistant TMS 30001, Recovery was ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101022

Investigación en Agricultura
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Njock, T.E. ,  Atiri, G.I. ,  Thottappilly, G. ,  Thresh, J.M. ,  [Disease development and recovery in resistant and susceptible cassava genotypes infected by African cassava mosaic geminivirus] ,  Disease development and recovery in resistant and susceptible cassava genotypes infected by African cassava mosaic geminivirus
Conference Paper 1990

Autor: Ng, S.Y.C. Rossel, H.W. Thottappilly, G.

Meristem-tip culture is being used to eliminate viruses from plants. The fact that some viruses are easier to eliminate than others has been utilized in thermotherapy and chemotherapy, along with meristem-tip culture, to increase the efficacy of disease elimination. Tissue culture materials are c...

Enlace original: https://cgspace.cgiar.org/handle/10568/101884

Investigación en Agricultura
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Ng, S.Y.C. ,  Rossel, H.W. ,  Thottappilly, G. ,  [The role of tissue culture in the establishment of disease free germplasm for international distribution] ,  The role of tissue culture in the establishment of disease free germplasm for international distribution
Journal Article 1997

Autor: Ogbe, F. Thottappilly, G. Quin, F.
Enlace original: https://cgspace.cgiar.org/handle/10568/103871

Investigación en Agricultura
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Ogbe, F. ,  Thottappilly, G. ,  Quin, F. ,  [Implementation in Africa of serological diagnostic test for cassava mosaic geminiviruses] ,  Implementation in Africa of serological diagnostic test for cassava mosaic geminiviruses

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