The success of inland valley crop production in humid and subhumid areas of subSaharan Africa depends on the availability of appropriate crop varieties with some tolerance to excess moisture. Performance of upland crop associations [cassava (Manihot esculenta) + sweet potato (Ipomoea batatas) and...
Carsky, R.J.
,
Walker, P.
,
Hauser, S.
,
Dashiell, Kenton E.
,
Dixon, A.
,
[Response of selected crop associations to groundwater table depth in an inland valley]
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Response of selected crop associations to groundwater table depth in an inland valley
The starchy staples of cassava (tuberous roots) provides more than half the calories consumed by more than 200 million people in sub-Saharan Africa, and the leaves are often used as a vegetable providing protein, vitamins and minerals. The cyanogenic potential of cassava has often been cited as a...
Dixon, A.
,
Asiedu, Robert
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Bokanga, M.
,
[Breeding of cassava for low cyanogenic potential: problems, progress and prospects]
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Breeding of cassava for low cyanogenic potential: problems, progress and prospects
Rossel, H.W.
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Asiedu, Robert
,
Dixon, A.
,
[Resistance of cassava to African cassava mosaic virus: what really pertains]
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Resistance of cassava to African cassava mosaic virus: what really pertains
Field evaluation of six cassava genotypes for resistance to root rot disease was compared with three rapid laboratory methods (whole root inoculation, root slice inoculation, and stem inoculation) for resistance screening. Both the field evaluation and the three laboratory methods separated the v...
Onyeka, T.J.
,
Dixon, A.
,
Ekpo, E.J.
,
[Assessment of laboratory methods for evaluating cassava genotypes for resistance to root rot disease]
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Assessment of laboratory methods for evaluating cassava genotypes for resistance to root rot disease
Genotype (G) by environment (E) interaction (GEI) in cassava was studied using 10 genotypes in a multilocational trial in Uganda at different altitudes for 2 years. The study investigated the magnitude of GEI and diagnosed the underlying causal factors of the G × E pattern. The ana...
Ntawuruhunga, Pheneas
,
Whyte, J.
,
Dixon, A.
,
Rubaihayo, P.R.
,
[Genotype by environment (G x E) interaction in cassava (Manihot esculenta Crantz) in Uganda]
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Genotype by environment (G x E) interaction in cassava (Manihot esculenta Crantz) in Uganda
Cassava flour has potential for multiple applications in the food industry. To develop cassava varieties for targeted household and industrial uses, it is necessary to evaluate the varietal and environmental variations in fresh root yield, cyanide potential and physic chemical properties A. total...
Maziya-Dixon, B.B.
,
Dixon, A.
,
Adebowale, A.
,
[Targeting different end uses of cassava: genotypic variations for cyanogenic potentials and pasting properties]
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Targeting different end uses of cassava: genotypic variations for cyanogenic potentials and pasting properties
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...
Bokanga, M.
,
Ekanayake, I.J.
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Dixon, A.
,
Porto, M.
,
[Genotype environment interactions for cyanogenic potential in cassava]
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Genotype environment interactions for cyanogenic potential in cassava
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...
Otoo, J.
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Dixon, A.
,
Asiedu, Robert
,
Okeke, J.
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Maroya, N.
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Tougnon, K.
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Okoli, O.
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Tetteh, J.
,
Hahn, S.
,
[Genotype x environment interaction studies with cassava]
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Genotype x environment interaction studies with cassava
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, ...
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 ...
Hankoua, B.
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Taylor, N.
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Ng, S.
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Fawole, I.
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Puonti-Kaerlas, J.
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Padmanabhan, C.
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Yadav, J.S.
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Fauquet, Claude M.
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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]
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Production of the first transgenic cassava in Africa via direct shoot organogenesis from friable embryogenic calli and germination of maturing somatic embryos