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...
The aim of the Integrated Cassava Project (ICP) of the International Institute of Tropical Agriculture was to pre-emptively manage the cassava mosaic disease (CMD) to avert an imminent and increasing possible threat of the Ugandan strain of the CMD virus of the pathogen from doing damage to the N...
Dixon, A.
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Akoroda, M.O.
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Okechukwu, R.U.
,
Ogbe, F.
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Ilona, P.
,
Sanni, L.O.
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Ezedinma, C.
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Lemchi, J.
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Ssemakula, G.N.
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Yomeni, M.
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Okoro, E.
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Tarawali, G.
,
[Fast track participatory approach to release of elite cassava genotypes for various uses in Nigerias cassava economy]
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Fast track participatory approach to release of elite cassava genotypes for various uses in Nigerias cassava economy
Cassava mosaic disease (CMD) caused by a group of begomoviruses and transmitted by whitefly vector is a serious disease in all the cassava-growing areas of Africa. Field evaluation with replication was conducted in 2003 and 2004 in three agroecologies in Nigeria to study the response of 40 cassav...
Egesi, Chiedozie N.
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Ogbe, F.O.
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Akoroda, M.O.
,
Ilona, P.
,
Dixon, A.
,
[Resistance profile of improved cassava germplasm to cassava mosaic disease in Nigeria]
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Resistance profile of improved cassava germplasm to cassava mosaic disease in Nigeria
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...
Ariyo, O.
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Dixon, A.
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Atiri, G.
,
[Whitefly Bemisia tabaci (Homoptera: Aleyrodidae) infestation on cassava genotypes grown at different ecozones in Nigeria]
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Whitefly Bemisia tabaci (Homoptera: Aleyrodidae) infestation on cassava genotypes grown at different ecozones in Nigeria
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...
Lokko, Y.
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Dixon, A.
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Offei, S.
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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]
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Assessment of genetic diversity among African cassava Manihot esculenta Grantz accessions resistant to the cassava mosaic virus disease using SSR markers
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...
Owolade, O.
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Dixon, A.
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Adeoti, A.
,
Osunlaja, S.
,
[Sources of resistance to cassava anthracnose disease]
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Sources of resistance to cassava anthracnose disease
The identification of superior genotypes and mega-environments on the basis of multiple traits is a key objective of multi-environment trials in cassava (Manihot esculenta Crantz). The objective of this study was to examine the genetic variation and genotype 3 environment interaction (GEI) effect...
Egesi, Chiedozie N.
,
Ilona, P.
,
Ogbe, F.O.
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Akoroda, M.O.
,
Dixon, A.
,
[Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria]
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Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria
The aim of the study was to investigate the chemical composition and pasting properties of 43 cassava mosaic desease (CMD) resistant clones planted at different locations (Ibadan, Onne and Mokwa) in Nigeria under rainfed conditions in 2003 and 2004. Ranges of chemical contents (%) were for amylos...
Sanni, L.O.
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Adebowale, A.A.
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Maziya-Dixon, B.B.
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Dixon, A.
,
[Chemical composition and pasting properties of CMD resistant cassava clones planted at different locations]
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Chemical composition and pasting properties of CMD resistant cassava clones planted at different locations
The aim was to investigate the chemical and functional properties of starches produced from 39 different cassava varieties (36 varieties resistant to cassava mosaic disease and three checks TMS 30572, 4(2) 1425 and 8200058) in two planting seasons at the experimental farm of the International Ins...
Eke, J.
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Achinewhu, S.C.
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Sanni, L.O.
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Barimalaa, I.S.
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Maziya-Dixon, B.B.
,
Dixon, A.
,
[Seasonal variations in the chemical and functional properties of starches from local and improved cassava varieties in high rainfall region of Nigeria]
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Seasonal variations in the chemical and functional properties of starches from local and improved cassava varieties in high rainfall region of Nigeria
Pre- and postharvest factors such as genetic factors, environmental conditions during the growth of the plant and the method of starch isolationhave been found to have a profound effect on the properties of root and tuber starches. The physicochemical, functional and pasting propertiesas well as ...
Onitilo, M.O.
,
Sanni, L.O.
,
Daniel, I.
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Maziya-Dixon, B.B.
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Dixon, A.
,
[Physicochemical and functional properties of native starches from cassava varieties in southwest Nigeria]
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Physicochemical and functional properties of native starches from cassava varieties in southwest Nigeria