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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 1998

Autor: Akano, A.O. Ng, S.Y.C. Dixon, A. Thottappilly, G.

In a study to map out the genes confering resistanceto African cassava msaic disease (ACMD), a cost-effective protocol for zygotic embryo culture developed at the International Institute of Tropical Agriculture(IITA) using 1/2 strenght Murashige and Skoog's basal media, was employed to germinatet...

Enlace original: https://cgspace.cgiar.org/handle/10568/95954

Investigación en Agricultura
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Akano, A.O. ,  Ng, S.Y.C. ,  Dixon, A. ,  Thottappilly, G. ,  [Application of embryo culture in germinating African cassava mosaic disease resistant gene mapping population] ,  Application of embryo culture in germinating African cassava mosaic disease resistant gene mapping population
Conference Paper 1994

Autor: Njock, T.E. Atiri, G. Thottappilly, G. Hahn, S.K.

The base section of the ACMV-susceptible clone 60506 recorded the highest disease incidence and severity relative to all other sections of the moderately resistant clone TMS 4(2)1425 and the resistant clone TMS 30001. However, in all clones, the base section recorded higher disease than either th...

Enlace original: https://cgspace.cgiar.org/handle/10568/100993

Investigación en Agricultura
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Njock, T.E. ,  Atiri, G. ,  Thottappilly, G. ,  Hahn, S.K. ,  [Distribution and disease recovery of African cassava mosaic virus (ACMV) in stems of resistance and susceptible cassava] ,  Distribution and disease recovery of African cassava mosaic virus (ACMV) in stems of resistance and susceptible cassava
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

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