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Yams (Dioscorea spp.) constitute an important starchy staple in sub-Saharan Africa (SSA) where food security for a growing population is a critical issue. Mixed cropping in yam based systems is the norm in the region and productivity of yams in these systems is below potential. It is concluded th...


Ekanayake, I.J.Asiedu, Robert[Problems and perspectives of yambased cropping systems in Africa]Problems and perspectives of yambased cropping systems in Africa

Symptoms of nutritional deficiencies in D. alata and D. rotundata were observed when yam plants were grown in nutrient solutions from which any of the following had been omitted: N, P, K, Ca, Mg, Zn, Fe, B, Mn, Cu and Mo. The symptoms of deficiency of major elements were visible on plants of both...


Shiwachi, H.Okonkwo, C.Asiedu, Robert[Nutrient deficiency symptoms in yams (Dioscorea spp.)]Nutrient deficiency symptoms in yams (Dioscorea spp.)

Yam (Dioscorea spp.) is a major staple crop with high agricultural and cultural significance for over 300 million people in West Africa. Despite its importance, productivity is miserably low. A better understanding of the environmental context in the region is essential to unlock the crop’s poten...


Alabi, T.R.Adebola, P.O.Asfaw, A.Koeyer, D. deLópez Montes, A.Asiedu, Robert[Spatial multivariate cluster analysis for defining target population of environments in west Africa for yam breeding]Spatial multivariate cluster analysis for defining target population of environments in west Africa for yam breeding

Yam (Dioscorea spp), a multi-species, polyploid, and vegetatively propagated tuber crop, is cultivated widely in the tropics and subtropics. Over 95% of the world's yam production occurs in West and Central Africa where white yam (Dioscorea rotundata Poir.) is the most important among cultivated ...


Otoo, E.Akromah, R.Kolesnikova-Allen, M.Asiedu, Robert[Delineation of pona complex of yam in Ghana using SSR markers]Delineation of pona complex of yam in Ghana using SSR markers

Kikuno, H.Oladimeji, Z.Ebuehi, A.Shiwachi, H.Onjo, M.Asiedu, Robert[Effect of n-propyl dihydrojasmonate (PDJ) on in vitro growth of yam (Dioscorea spp.) explants]Effect of n-propyl dihydrojasmonate (PDJ) on in vitro growth of yam (Dioscorea spp.) explants

Wild relatives of cassava (Manihot spp.) and yam (Dioscorea spp.) have many attributes of importance to the genetic improvement of the cultivated species. Some crosses between cassava and its wild relatives have led to poly ploids (crosses to M. />laziovii and M. epruinosa) and resistance to two ...


Asiedu, RobertBai, K.V.Terauchi, R.Dixon, Alfred G.O.Hahn, S.K.[Status of wide crosses in cassava and yam]Status of wide crosses in cassava and yam

Resistance to Yam mosaic virus (YMV) in tetraploid white yam (Dioscorea rotundata) is inherited differentially as a dominant and recessive character. Elite D. rotundata breeding lines with durable resistance to YMV can be developed by pyramiding major dominant and recessive genes using marker ass...


Mignouna, H.D.Abang, Mathew M.Onasanya, A.Agindotan, B.Asiedu, Robert[Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata)]Identification and potential use of RAPD markers linked to yam mosaic virus resistance in white yam (Dioscorea rotundata)

A genetic linkage map of the tetraploid water yam (Dioscorea alata L.) genome was constructed based on 469 co-dominantly scored amplified fragment length polymorphism (AFLP) markers segregating in an intraspecific F1 cross. The F1 was obtained by crossing two improved breeding lines, TDa 95/00328...


Mignouna, H.D.Mank, R.A.Ellis, T.H.N.Bosch, N.V.D.Asiedu, RobertAbang, Mathew M.Peleman, J.[A genetic linkage map of water yam (Dioscorea alata L.) based on AFLP markers and QTL analysis for anthracnose resistance]A genetic linkage map of water yam (Dioscorea alata L.) based on AFLP markers and QTL analysis for anthracnose resistance
Akoroda, M.O.Amegbeto, K.Asiedu, RobertAttey, A.N.Baah, F.Bakam, I.Bandyopadhyay, RanajitBoivin, M.Boons, P.Cornet, D.Coyne, D.L.David, S.Dixon, A.Dumet, D.Ezedinma, C.Gockowski, J.Goergen, Georg E.Gyamfi, I.Hanna, R.Halos-Kim, L.Hauser, S.Hughes, J.Kikuno, H.Kolesnikova-Allen, M.Legg, C.Legg, J.P.Lema, A.Lemchi, J.Lokko, Y.Makinde, K.Mahungu, N.M.Maroya, N.G.Maziya-Dixon, B.B.Mkumbira, J.Mva Mva, J.Mwangi, M.Nguimgo, B.Nielsen, O.Nkamleu, G.B.Nolte, C.Norgrove, L.Ogbe, F.Okafor, C.Okechukwu, R.Okoro, E.Patino, M.Sanni, L.O.Shiwachi, H.Ssemakula, G.N.Tarawali, G.Tenkouno, A.Tindo, M.Toko, M.Weise, S.F.Wendt, J.Yapo Assamoi, A.[Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems]Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems

Balogun, M.Maroya, N.Asiedu, RobertTaiwo, J.[Novelty, rapidity and quality in seed yam production: the case of Temporary Immersion Bioreactors]Novelty, rapidity and quality in seed yam production: the case of Temporary Immersion Bioreactors

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