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The high demand for good quality planting materials of improved cassava (Manihot esculenta Crantz) cultivars by the farmers in sub-Saharan Africa are not fully met in a timely manner. Perishability, slow multiplication rate and bulkiness of planting materials, weak definition of multiplication re...


Ekanayake, I.Asiedu, RobertBieler, P.[Production and delivery systems of good quality cassava planting materials in sub-Saharan Africa]Production and delivery systems of good quality cassava planting materials in sub-Saharan Africa

Mignouna, B.D.Maroya, N.Aighewi, B.A.Kumar, L.Akinribido, B.Ikeorgu, J.Abdoulaye, TahirouAkinola, Adebayo A.Alene, A.D.Manyong, Victor M.Asiedu, Robert[Impact assessment report of YIIFSWA project: raising household income, improving food security and reducing poverty in Nigeria]Impact assessment report of YIIFSWA project: raising household income, improving food security and reducing poverty in Nigeria

Background Maize yield potential is rarely maximized in sub-Saharan Africa (SSA) due to the devastating effects of drought stress and Striga hermonthica parasitism. This study was conducted to determine the gains in grain yield and associated changes in an early-maturing yellow bi-parental maize ...


Badu-Apraku, B.Talabi, A.O.Fakorede, M.A.B.Fasanmade, Y.Gedil, M.Magorokosho, C.Asiedu, Robert[Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance]Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance

One suspected mutant with the broad, thick and dark green leaves characteristic of tetraploid cassava was found from each of the cassava clones TMS 91934 and TMS 89/00037-17 planted out in the field. Cytological examination confirmed them as tetraploids with chromosomes number 2n=4x=72. The mutan...


Hahn, S.K.Bai, V.K.Asiedu, Robert[Spontaneous somatic tetraploids in cassava]Spontaneous somatic tetraploids in cassava

Cassava has long been expected to play a key role in rural economic growth in Africa, but has it happened yet? Although research partnerships have produced elite cassava varieties with 50% more yield potential and have demonstrated technologies to improve processing and increase marketing of cass...


James, B.D.Bramel-Cox, P.J.Witte, E.R.Asiedu, RobertWatson, D.Okechukwu, R.U.[Unleashing the power of cassava in Africa…are we there yet?]Unleashing the power of cassava in Africa…are we there yet?

Saski, C.A.Bhattacharjee, R.Scheffler, B.E.Asiedu, Robert[Genomic resources for water yam (Dioscorea alata L.): analyses of EST sequences, De Novo sequencing and GBS libraries]Genomic resources for water yam (Dioscorea alata L.): analyses of EST sequences, De Novo sequencing and GBS libraries

Yam (Dioscorea spp.) is a major food of cultural, economic and nutritional importance in Nigeria and throughout West Africa. In this sub-region, white yam (Dioscorea rotundata) is the most dominant and important species. This study is aimed at characterizing high yielding yam varieties of this sp...


Alamu, E.O.Maziya-Dixon, B.B.Okonkwo, C.C.Asiedu, Robert[Physicochemical and bioactive properties of selected white yam (Dioscorea rotundata) varieties adapted to riverine areas of Nigeria]Physicochemical and bioactive properties of selected white yam (Dioscorea rotundata) varieties adapted to riverine areas of Nigeria

Accurate and timely detection is vital for mitigation of tuber yield losses resulting from yam mosaic virus (YMV) infection on yam, a major food security crop in West Africa. The observation, from our previous studies, that the triple antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA...


Eni, A.Hughes, J.Asiedu, RobertRey, M.[Re-evaluation of Yam Mosaic Virus (YMV) detection methods]Re-evaluation of Yam Mosaic Virus (YMV) detection methods

Greater yam (Dioscorea alata L.), belonging to the family Dioscoreaceae, is a staple food crop of the tropics. It is cultivated for its edible, nutritious, underground tubers. Its productivity declined due to anthracnose disease. There was no sequence information for yam in the public database. T...


Narina, S.S.Montegue, P.Asiedu, RobertMohamed, A.I.[Development of microsatellite markers for anthracnose resistance in greater yam (Dioscorea alata L.) from expressed sequence tags of heterologous crop species]Development of microsatellite markers for anthracnose resistance in greater yam (Dioscorea alata L.) from expressed sequence tags of heterologous crop species

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