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Journal Article 2008

Autor: Raji, A. Ladeinde, O. Dixon, A.

Twelve cassava landraces were evaluated for sources of resistance genes to diseases and pests of major economic importance in Africa. The objective was to assess their levels of field resistance to mosaic disease (ACMD), bacterial blight (CBB), anthracnose (CAD), and green mite (CGM), compared to...

Enlace original: https://cgspace.cgiar.org/handle/10568/90903

Investigación en Agricultura
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Raji, A. ,  Ladeinde, O. ,  Dixon, A. ,  [Screening landraces for additional sources of field resistance to Cassava Mosaic Disease and green mite for integration into the Cassava Improvement Program] ,  Screening landraces for additional sources of field resistance to Cassava Mosaic Disease and green mite for integration into the Cassava Improvement Program
Journal Article 1994

Autor: Bokanga, M. Ekanayake, I.J. Dixon, A. Porto, M.

The distribution of the cyanogenic potential in cassava germplasm has been found to be a continuum from very low values to high levels. Within the same genotype, the cyanogenic potential is affected by the planting season; it is low when planted at the beginning of the rainy season, and high when...

Enlace original: https://cgspace.cgiar.org/handle/10568/97377

Investigación en Agricultura
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Bokanga, M. ,  Ekanayake, I.J. ,  Dixon, A. ,  Porto, M. ,  [Genotype environment interactions for cyanogenic potential in cassava] ,  Genotype environment interactions for cyanogenic potential in cassava
Journal Article 1994

Autor: Otoo, J. Dixon, A. Asiedu, Robert Okeke, J. Maroya, N. Tougnon, K. Okoli, O. Tetteh, J. Hahn, S.

Multilocational trials were conducted in several agroecological zones in West Africa to assess the magnitude of genotype x environment (G x E) interaction and to identify stable varieties which could be used in breeding programs in the region. The reaction of the varieties to major cassava diseas...

Enlace original: https://cgspace.cgiar.org/handle/10568/97369

Investigación en Agricultura
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Otoo, J. ,  Dixon, A. ,  Asiedu, Robert ,  Okeke, J. ,  Maroya, N. ,  Tougnon, K. ,  Okoli, O. ,  Tetteh, J. ,  Hahn, S. ,  [Genotype x environment interaction studies with cassava] ,  Genotype x environment interaction studies with cassava
Journal Article 1994

Autor: Hahn, S. Bai, K. Chukwuma, E. Asiedu, Robert Dixon, A. Ng, S.

Spontaneous sexual and asexual polyploids occur in cassava. The cassava polyploid breeding strategies using these polyploidization processes are discussed. Sexual polyploidization has advantages over asexual polyploidization in terms of viability of gametes, heterosis, vigor, plant architecture, ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97367

Investigación en Agricultura
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Hahn, S. ,  Bai, K. ,  Chukwuma, E. ,  Asiedu, Robert ,  Dixon, A. ,  Ng, S. ,  [Polyploid breeding of cassava] ,  Polyploid breeding of cassava
Journal Article 2005

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

Large-scale screening of cassava, Manihot esculenta Crantz, genotypes for resistance to infestation by whitefly Bemisia tabaci Gennadius, the vector of cassava mosaic geminiviruses, is limited. A range of new cassava elite clones were therefore assessed for the whitefly infestation in the 1999/20...

Enlace original: https://cgspace.cgiar.org/handle/10568/91898

Investigación en Agricultura
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Ariyo, O. ,  Dixon, A. ,  Atiri, G. ,  [Whitefly Bemisia tabaci (Homoptera: Aleyrodidae) infestation on cassava genotypes grown at different ecozones in Nigeria] ,  Whitefly Bemisia tabaci (Homoptera: Aleyrodidae) infestation on cassava genotypes grown at different ecozones in Nigeria
Journal Article 2006

Autor: Hankoua, B. Taylor, N. Ng, S. Fawole, I. Puonti-Kaerlas, J. Padmanabhan, C. Yadav, J.S. Fauquet, Claude M. Dixon, A. Fondong, V.N.

The impact of cassava transformation technologies for agricultural development in Africa will depend largely on how successfully these capabilities are transferred and adapted to the African environment and local needs. Here we report on the first successful establishment of cassava regeneration ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91368

Investigación en Agricultura
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Hankoua, B. ,  Taylor, N. ,  Ng, S. ,  Fawole, I. ,  Puonti-Kaerlas, J. ,  Padmanabhan, C. ,  Yadav, J.S. ,  Fauquet, Claude M. ,  Dixon, A. ,  Fondong, V.N. ,  [Production of the first transgenic cassava in Africa via direct shoot organogenesis from friable embryogenic calli and germination of maturing somatic embryos] ,  Production of the first transgenic cassava in Africa via direct shoot organogenesis from friable embryogenic calli and germination of maturing somatic embryos
Journal Article 2006

Autor: Lokko, Y. Dixon, A. Offei, S. Danquah, E.Y. Fregene, Martin A.

A study was conducted to determine the extent of genetic diversity among African cassava (Manihot esculenta Crantz) accessions resistant to the cassava mosaic virus disease (CMD), using simple sequence repeat (SSR) markers. The accessions included a breeding stock (clone 58308), five improved lin...

Enlace original: https://cgspace.cgiar.org/handle/10568/91367

Investigación en Agricultura
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Lokko, Y. ,  Dixon, A. ,  Offei, S. ,  Danquah, E.Y. ,  Fregene, Martin A. ,  [Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers] ,  Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers
Journal Article 2005

Autor: Owolade, O. Dixon, A. Adeoti, A. Osunlaja, S.

A total of 436 African landraces and 497 improved cassava genotypes were planted in 1996, 1997, 1998 and 1999 growing seasons.. These were evaluated for their reactions to cassava anthracnose disease (CAD) under natural infection conditions at Ibadan (a high infection zone). The severity of the d...

Enlace original: https://cgspace.cgiar.org/handle/10568/91899

Investigación en Agricultura
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Owolade, O. ,  Dixon, A. ,  Adeoti, A. ,  Osunlaja, S. ,  [Sources of resistance to cassava anthracnose disease] ,  Sources of resistance to cassava anthracnose disease
Journal Article 2006

Autor: Ogunjobi, A.A. Fagade, O. Dixon, A.

Xanthomonas axonopodis pv manihotis (Xam) is the causal agent of cassava bacterial blight (CBB) in all cassava growing areas of the world. To develop an efficient disease management strategy, the genetic diversity of the pathogens population ought to be known. Information is scarce on the geneti...

Enlace original: https://cgspace.cgiar.org/handle/10568/91366

Investigación en Agricultura
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Ogunjobi, A.A. ,  Fagade, O. ,  Dixon, A. ,  [Molecular variation in population structure of Xanthomonas axonopodis pv Manihotis in the south eastern Nigeria] ,  Molecular variation in population structure of Xanthomonas axonopodis pv Manihotis in the south eastern Nigeria
Journal Article 1997

Autor: Dixon, A.
Enlace original: https://cgspace.cgiar.org/handle/10568/103830

Investigación en Agricultura
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Dixon, A. ,  [Cassava mosaic disease in subSaharan Africa: potential of African landraces as sources of resistance] ,  Cassava mosaic disease in subSaharan Africa: potential of African landraces as sources of resistance

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