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Journal Article 2019-07

Autor: Alabi, T.R. Adebola, P.O. Asfaw, A. Koeyer, D. de López Montes, A. Asiedu, Robert

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/98316

Investigación en Agricultura
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Alabi, T.R. ,  Adebola, P.O. ,  Asfaw, A. ,  Koeyer, D. de ,  López 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
Journal Article 2008

Autor: Akin-Idowu, P.E. Odunola, O.A. Asiedu, Robert Maziya-Dixon, B.B. Uwaifo, A.O.

Eight genotypes of yellow yam (Dioscorea cayenensis) were planted at locations in two major yam-growing agroecologies of Nigeria (Onne in the humid forest zone and Ibadan in the forest/savannah transition zone) for assessment of the contents of minerals and antinutrients. Significant differences ...

Enlace original: https://cgspace.cgiar.org/handle/10568/90929

Investigación en Agricultura
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Akin-Idowu, P.E. ,  Odunola, O.A. ,  Asiedu, Robert ,  Maziya-Dixon, B.B. ,  Uwaifo, A.O. ,  [Variation in nutrient and antinutrient contents of tubers from yellow yam (Dioscorea cayenensis) genotypes grown at two locations] ,  Variation in nutrient and antinutrient contents of tubers from yellow yam (Dioscorea cayenensis) genotypes grown at two locations
Journal Article 2009

Autor: Abang, Mathew M. Abraham, W.R. Asiedu, Robert Hoffmann, P. Wolf, G. Winter, S.

Highly virulent, slow-growing grey (SGG); moderately virulent, fast-growing salmon (FGS); and avirulent/weakly virulent, fast-growing grey (FGG) forms of Colletotrichum gloeosporioides have been described from yam (Dioscorea spp.), but little is known about their chemodiversity or the role of tox...

Enlace original: https://cgspace.cgiar.org/handle/10568/90179

Investigación en Agricultura
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Abang, Mathew M. ,  Abraham, W.R. ,  Asiedu, Robert ,  Hoffmann, P. ,  Wolf, G. ,  Winter, S. ,  [Secondary metabolite profile and phytotoxic activity of genetically distinct forms of Colletotrichum gloeosporioides from yam (Dioscorea spp.)] ,  Secondary metabolite profile and phytotoxic activity of genetically distinct forms of Colletotrichum gloeosporioides from yam (Dioscorea spp.)
Journal Article 2009

Autor: Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert

The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African coun...

Enlace original: https://cgspace.cgiar.org/handle/10568/90195

Investigación en Agricultura
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Obidiegwu, J.E. ,  Loureiro, J. ,  Ene-Obong, E.E. ,  Rodríguez, E. ,  Kolesnikova-Allen, M. ,  Santos, C. ,  Muoneke, C. ,  Asiedu, Robert ,  [Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set] ,  Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set
Journal Article 2009

Autor: Otoo, E. Asiedu, Robert

A five-year study involving 38 genotypes of D. rotundata cultivar Tela was evaluated in 15 environments from 2000 to 2004 using CRD. The three locations were Bodwease (Coastal Savanna), Fumesua (Forest) and Wenchi (Forest-Savanna Transition). The objective was to assess the effect of genotype and...

Enlace original: https://cgspace.cgiar.org/handle/10568/90213

Investigación en Agricultura
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Otoo, E. ,  Asiedu, Robert ,  [GGE biplot analysis of Dioscorea rotundata cultivar tela genotypes in Ghana] ,  GGE biplot analysis of Dioscorea rotundata cultivar tela genotypes in Ghana
Journal Article 2009

Autor: Otoo, E. Akromah, R. Kolesnikova-Allen, M. Asiedu, Robert

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/90212

Investigación en Agricultura
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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
Journal Article 2005

Autor: Kikuno, H. Oladimeji, Z. Ebuehi, A. Shiwachi, H. Onjo, M. Asiedu, Robert
Enlace original: https://cgspace.cgiar.org/handle/10568/103444

Investigación en Agricultura
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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
Book Chapter 1992

Autor: Asiedu, Robert Bai, K.V. Terauchi, R. Dixon, Alfred G.O. Hahn, S.K.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100028

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Asiedu, Robert ,  Bai, 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
Journal Article 2002

Autor: Mignouna, H.D. Abang, Mathew M. Onasanya, A. Agindotan, A. Asiedu, Robert

Anthracnose, caused by Colletotrichum gloeosporioides, is the most severe foliar disease of water yam (Dioscorea alata) worldwide. The tetraploid breeding line, TDa 95/00328, is a source of dominant genetic resistance to the moderately virulent fast growing salmon (FGS) strain of C. gloeosporioid...

Enlace original: https://cgspace.cgiar.org/handle/10568/99965

Investigación en Agricultura
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Mignouna, H.D. ,  Abang, Mathew M. ,  Onasanya, A. ,  Agindotan, A. ,  Asiedu, Robert ,  [Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)] ,  Identification and potential application of RAPD markers for anthracnose resistance in water yam (Dioscorea alata)
Journal Article 2002

Autor: Mignouna, H.D. Abang, Mathew M. Onasanya, A. Agindotan, B. Asiedu, Robert

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/99964

Investigación en Agricultura
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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)

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