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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 Proceedings 2012

Autor: Yomeni, M.O. Akoroda, M.O. Dixon, Alfred G.O.

Four attributes of stem quality: number of nodes1, diameter2, and stem weight3 per 25-cm plantable stake (PS), and the stake position4 were investigated in field trials at Blocks 4, 18 and 24 of the International Institute of Tropical Agriculture (IITA) Onne, Ajibode, Ibadan, Federal College of A...

Enlace original: https://cgspace.cgiar.org/handle/10568/80516

Investigación en Agricultura
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Yomeni, M.O. ,  Akoroda, M.O. ,  Dixon, Alfred G.O. ,  [Cassava (Manihot esculenta Crantz) stems quality for root production effectiveness] ,  Cassava (Manihot esculenta Crantz) stems quality for root production effectiveness
Journal Article 2009-08

Autor: Lava Kumar, P. Akinbade, S.A. Dixon, Alfred G.O. Mahungu, N.M. Mutunda, M.P. Kiala, D. Londa, L. Legg, J.P.

Cassava mosaic disease (CMD) is the major production constraint on cassava ( Manihot esculenta ) in Angola. Previous reports derived from single samples recorded the presence of African cassava mosaic virus (ACMV) and East African cassava mosaic virus (EACMV) in Angola. Regional CMD monitoring in...

Enlace original: https://cgspace.cgiar.org/handle/10568/90813

Investigación en Agricultura
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Lava Kumar, P. ,  Akinbade, S.A. ,  Dixon, Alfred G.O. ,  Mahungu, N.M. ,  Mutunda, M.P. ,  Kiala, D. ,  Londa, L. ,  Legg, J.P. ,  [First report of the occurrence of East African cassava mosaic virusUganda (EACMVUG) in Angola] ,  First report of the occurrence of East African cassava mosaic virusUganda (EACMVUG) in Angola
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 2006

Autor: Ogbe, F. Dixon, Alfred G.O. Hughes, J.D. Alabi, O.J. Okechukwu, R.U.

A diagnostic survey was conducted in 2002-03 to determine the status of cassava mosaic begomoviruses in Nigeria and to ascertain if the virulent Ugandan variant of East African cassava mosaic virus (EACMV-Ug2) was present. Of the 418 farms visited, 48% had cassava with moderately severe or severe...

Enlace original: https://cgspace.cgiar.org/handle/10568/91370

Investigación en Agricultura
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Ogbe, F. ,  Dixon, Alfred G.O. ,  Hughes, J.D. ,  Alabi, O.J. ,  Okechukwu, R.U. ,  [Status of cassava begomoviruses and their new natural hosts in Nigeria] ,  Status of cassava begomoviruses and their new natural hosts in Nigeria
Journal Article 2007

Autor: Alabi, O.J. Ogbe, F.O. Bandyopadhyay, Ranajit Dixon, Alfred G.O. Hughes, J. Naidu, R.A.

Cassava mosaic disease (CMD) in Africa is caused by six distinct cassava mosaic viruses (family eminiviridae, genus Begomovirus). Among them, African cassava mosaic virus (ACMV) and East African cassava mosaicCameroon virus (EACMCV) have been reported in CMD-infected cassava plants in Nigeria. Ba...

Enlace original: https://cgspace.cgiar.org/handle/10568/92184

Investigación en Agricultura
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Alabi, O.J. ,  Ogbe, F.O. ,  Bandyopadhyay, Ranajit ,  Dixon, Alfred G.O. ,  Hughes, J. ,  Naidu, R.A. ,  [The occurrence of African cassava mosaic virus and East African cassava mosaic Cameroon virus in natural hosts other than cassava in Nigeria] ,  The occurrence of African cassava mosaic virus and East African cassava mosaic Cameroon virus in natural hosts other than cassava in Nigeria
Journal Article 2006

Autor: Lokko, Y. Dixon, Alfred G.O. Offei, S. Danquah, E.Y.

A North Carolina design II experiment, with three improved cassava (Mctnihot esculenta Crantz) accessions as the female parents, l5 cassava landraces and three improved cassava accessions as the male parents (3 x I 8), was evaluated in three environments in Nigeria to determine the mode of gene a...

Enlace original: https://cgspace.cgiar.org/handle/10568/91387

Investigación en Agricultura
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Lokko, Y. ,  Dixon, Alfred G.O. ,  Offei, S. ,  Danquah, E.Y. ,  [Combining ability analysis of resistance to mosaic virus disease in cassava] ,  Combining ability analysis of resistance to mosaic virus disease in cassava
Journal Article 2008

Autor: Okechukwu, R.U. Dixon, Alfred G.O. Akoroda, M.O. Mwangi, M. Bandyopadhyay, Ranajit

In 2004 and 2005 through field trials in over 2500 locations in several agroecological zones, 40 new cassava varieties were introduced in Nigeria. The trials were managed by scientists, extension workers and farmers. The aim in introducing these new varieties was to pre-emptively manage cassava m...

Enlace original: https://cgspace.cgiar.org/handle/10568/90898

Investigación en Agricultura
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Okechukwu, R.U. ,  Dixon, Alfred G.O. ,  Akoroda, M.O. ,  Mwangi, M. ,  Bandyopadhyay, Ranajit ,  [Root rot resistance in new cassava varieties introduced to farmers in Nigeria] ,  Root rot resistance in new cassava varieties introduced to farmers in Nigeria
Journal Article 2008

Autor: Baiyeri, K.P. Edibo, G.O. Obi, I.U. Ogbe, F.O. Egesi, Chiedozie N. Eke-Okoro, O.N. Okogbenin, Emmanuel Dixon, Alfred G.O.

Ten new cassava genotypes selected for high yield and tolerance to some biotic stresses were evaluated alongside the local best, Otupam and ‘TMS 30572\' (a widely cultivated hybrid genotype, as an improved check) for two cropping seasons with a view to obtaining suitable genotype(s) that could be...

Enlace original: https://cgspace.cgiar.org/handle/10568/90830

Investigación en Agricultura
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Baiyeri, K.P. ,  Edibo, G.O. ,  Obi, I.U. ,  Ogbe, F.O. ,  Egesi, Chiedozie N. ,  Eke-Okoro, O.N. ,  Okogbenin, Emmanuel ,  Dixon, Alfred G.O. ,  [Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern Nigeria] ,  Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern Nigeria
Journal Article 2008

Autor: Alabi, O.J. Ogbe, F.O. Bandyopadhyay, Ranajit Kumar, P.L. Dixon, Alfred G.O. Hughes, Jacqueline d'Arros Naidu, R.A.

Cassava mosaic disease (CMD) caused by African cassava mosaic virus (ACMV) and East African cassava mosaic Cameroon virus (EACMCV) is the major constraint to cassava production in Nigeria. Sequences of the DNA-A component of ACMV and EACMCV isolates from leguminous plant species (Senna occidental...

Enlace original: https://cgspace.cgiar.org/handle/10568/90741

Investigación en Agricultura
DNA
Enlace permanente
Alabi, O.J. ,  Ogbe, F.O. ,  Bandyopadhyay, Ranajit ,  Kumar, P.L. ,  Dixon, Alfred G.O. ,  Hughes, Jacqueline d'Arros ,  Naidu, R.A. ,  [Alternate hosts of African cassava mosaic virus and East African cassava mosaic Cameroon virus in Nigeria] ,  Alternate hosts of African cassava mosaic virus and East African cassava mosaic Cameroon virus in Nigeria

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