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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 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 2002

Autor: Akano, A.O. Dixon, Alfred G.O. Mba, C Barrera Sabogal, E Fregene, Martin A.

Cassava mosaic disease (CMD) is the most-important disease of cassava (Manihot esculenta) in Africa, and is a potential threat to Latin American (LA) cassava production. Although this viral disease is still unknown in LA, its vector – the whitefly – has recently been found. The disease is best co...

Enlace original: https://cgspace.cgiar.org/handle/10568/42896

Investigación en Agricultura
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Akano, A.O. ,  Dixon, Alfred G.O. ,  Mba, C ,  Barrera Sabogal, E ,  Fregene, Martin A. ,  [Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease] ,  Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease
Journal Article 1998

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

Dry yield and yield components from 6 multilocational trials of cassava genotypes conducted for 3 years in Nigeria were used to study the nature and magnitude of genotype x environment (G x E) interaction and to determine the optimum resource allocation for cassava yield trials. The effects of en...

Enlace original: https://cgspace.cgiar.org/handle/10568/42915

Investigación en Agricultura
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Dixon, Alfred G.O. ,  Nukenine, EN ,  [Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava] ,  Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava
Journal Article 2009

Autor: Raji, A.A.J. Fawole, I. Gedil, M. Dixon, Alfred G.O.

Molecular-marker-aided evaluation of germplasm plays an important role indefining the genetic diversity of plant genotypes for genetic and populationimprovement studies. A collection of African cassava landraces and elite culti-vars was analysed for genetic diversity using 20 amplified fragment l...

Enlace original: https://cgspace.cgiar.org/handle/10568/90197

Investigación en Agricultura
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Raji, A.A.J. ,  Fawole, I. ,  Gedil, M. ,  Dixon, Alfred G.O. ,  [Genetic differentiation analysis of African cassava (Manihot esculenta) landraces and elite germplasm using amplified fragment length polymorphism and simple sequence repeat markers] ,  Genetic differentiation analysis of African cassava (Manihot esculenta) landraces and elite germplasm using amplified fragment length polymorphism and simple sequence repeat markers
Journal Article 2002

Autor: Nukenine, E.N. Hassan, A.T. Dixon, Alfred G.O. Fokunang, C.N.

The population dynamics of Mononychellus tanajoa as influenced by varietal resistance of cassava was determined over two cassava planting seasons (dry and wet season), using biweekly samples from 11 cassava genotypes in Ibadan, Nigeria. The population size of M. tanajoa and the damage scores were...

Enlace original: https://cgspace.cgiar.org/handle/10568/99962

Investigación en Agricultura
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Nukenine, E.N. ,  Hassan, A.T. ,  Dixon, Alfred G.O. ,  Fokunang, C.N. ,  [Population dynamics of cassava green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae) as influenced by varietal resistance] ,  Population dynamics of cassava green mite, Mononychellus tanajoa (Bondar) (Acari: Tetranychidae) as influenced by varietal resistance
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 2015

Autor: Ariyo, O.A. Dixon, Alfred G.O. Atiri, G.I. Gachomo, E.W. Kotchoni, S.O.

Twenty-two cassava genotypes and eight controls were evaluated in two cropping seasons for resistance to cassava mosaic disease (CMD) at the International Institute of Tropical Agriculture (IITA) fields, located at different ecozones of Nigeria. Disease incidence (DI) and index of symptom severit...

Enlace original: https://cgspace.cgiar.org/handle/10568/74440

Investigación en Agricultura
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Ariyo, O.A. ,  Dixon, Alfred G.O. ,  Atiri, G.I. ,  Gachomo, E.W. ,  Kotchoni, S.O. ,  [Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones] ,  Disease resistance characterisation of improved cassava genotypes to Cassava Mosaic Disease at different ecozones
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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