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Journal Article 1994

Autor: Dixon, A. Asiedu, Robert Bokanga, M.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/100934

Investigación en Agricultura
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Dixon, A. ,  Asiedu, Robert ,  Bokanga, M. ,  [Breeding of cassava for low cyanogenic potential: problems, progress and prospects] ,  Breeding of cassava for low cyanogenic potential: problems, progress and prospects
Conference Paper 1994

Autor: Ekanayake, I.J. Dixon, A. Asiedu, Robert Izac, A.M.

A substantial impact on Africa agriculture can be made through research on crop improvement for the extensive inland valley agro-ecosystems (IVS) extending from the humid forest to the savanna zones in sub saharan Africa. Systematic surveys of farmers have shown that cassava is a favoured upland ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100970

Investigación en Agricultura
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Ekanayake, I.J. ,  Dixon, A. ,  Asiedu, Robert ,  Izac, A.M. ,  [Improved cassava for inland valley agroecosystems] ,  Improved cassava for inland valley agroecosystems
Conference Paper 2009

Autor: Ikeorgu, J.G. Oselebe, H. Oluwatayo, J. Ugwuoke, K. Ukpabi, U.J. Asiedu, Robert

Four hybrid water yam (Dioscorea alata) genotypes (TDa 00/00194, TDa 00/00103, TDa 00/00104, TDa 00/00363) with two superior landraces (TDa 92-2 and UM 680) were evaluated for high and stable yields, pest and disease resistance, and acceptable food and market qualities in 2006 using ...

Quatre hybrides génotypes d’igname, l’eau yam (Dioscorea alata) (TDa 00/00194, TDa 00/00103, TDa 00/00104, TDa 00/00363 avec deux variétés supérieurs de races- une variété qui tolère l’effort biotique et abiotique ayant pour le résultat la stabilité élevée de rendement (TDa 92-2 et U...

Enlace original: https://cgspace.cgiar.org/handle/10568/90805

Investigación en Agricultura
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Ikeorgu, J.G. ,  Oselebe, H. ,  Oluwatayo, J. ,  Ugwuoke, K. ,  Ukpabi, U.J. ,  Asiedu, Robert ,  [Farmer participatory evaluation of four hybrid water yam clones in the yam belt of Nigeria] ,  Farmer participatory evaluation of four hybrid water yam clones in the yam belt of Nigeria
Journal Article 2009

Autor: Narina, S.S. Mohammed, I. Asiedu, Robert Mignouna, H.D.

For the purpose of constructing yam cDNA libraries, attempts to isolate high quality RNA using several previously reported protocols were unsuccessful. Therefore a protocol was standardized for yam total RNA isolation by using guanidium buffer at the Department of Biology, Virginia Sate Universit...

Enlace original: https://cgspace.cgiar.org/handle/10568/90739

Investigación en Agricultura
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Narina, S.S. ,  Mohammed, I. ,  Asiedu, Robert ,  Mignouna, H.D. ,  [A standardized RNA isolation protocol for yam (Dioscorea alata L) cDNA library construction] ,  A standardized RNA isolation protocol for yam (Dioscorea alata L) cDNA library construction
Journal Article 2008

Autor: Otoo, E. Anchirinah, V.M. Ennin, S.A. Asiedu, Robert

A trial was conducted on-station with farmer participation at Fumesua (Forest zone), Wenchi (Forest-Savannah transition zone) and Bodwease (Coastal Savannah zone) from 2000 to 2003 and on-farm during 2002-2003. Two factors, staking and species, with two levels each were assessed using the Augment...

Enlace original: https://cgspace.cgiar.org/handle/10568/90919

Investigación en Agricultura
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Otoo, E. ,  Anchirinah, V.M. ,  Ennin, S.A. ,  Asiedu, Robert ,  [Sustainable yam production in Ghana The nonstaking option] ,  Sustainable yam production in Ghana The nonstaking option
Journal Article 2005

Autor: Egesi, Chiedozie N. Ogunyemi, S. Asiedu, Robert

A randomised complete block experiment was conducted in the 1998 and 1999 cropping seasons in five major yam growing areas in the yam belt of Nigeria to evaluate the performance and yield stability of six genotypes of water yarn (Dioscorea alata L). Location, genotype and their interaction effect...

Enlace original: https://cgspace.cgiar.org/handle/10568/91791

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Ogunyemi, S. ,  Asiedu, Robert ,  [Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria] ,  Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria
Journal Article 2006

Autor: Odu, B.O. Asiedu, Robert Shoyinka, S.A. Hughes, J.A.

Studies were made to identify sources of resistance to yam viruses in Dioscorea alata. Forty genotypes of D. alata were evaluated in both the field and in the screenhouse for reactions to the yam viruses: Yam mosaic virus (YMV), genus Potyvirus; Dioscorea alata virus (DAV), genus Potyvirus; Cucum...

Enlace original: https://cgspace.cgiar.org/handle/10568/91349

Investigación en Agricultura
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Odu, B.O. ,  Asiedu, Robert ,  Shoyinka, S.A. ,  Hughes, J.A. ,  [Screening of water yam (Dioscorea alata L.) genotypes for reactions to viruses in Nigeria] ,  Screening of water yam (Dioscorea alata L.) genotypes for reactions to viruses in Nigeria
Journal Article 1997

Autor: Akano, A.O. Atiri, G. Ng, S.Y.C. Asiedu, Robert
Enlace original: https://cgspace.cgiar.org/handle/10568/103831

Investigación en Agricultura
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Akano, A.O. ,  Atiri, G. ,  Ng, S.Y.C. ,  Asiedu, Robert ,  [Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria] ,  Effect of African cassava mosaic disease on growth and yield components of virustested cassava genotypes derived from meristem culture in early and late planting periods in three agroecologies of Nigeria
Journal Article 2006

Autor: Otoo, E. Asiedu, Robert

Cultivar evaluation and mega-environment identification are the most important objectives of multi-environment trials (MET). The objective of this study was to assess the effect of genotype and genotype x environment interaction on the tuber yield of 18 yellow yam (D. cayenensis L.) genotypes via...

Enlace original: https://cgspace.cgiar.org/handle/10568/91352

Investigación en Agricultura
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Otoo, E. ,  Asiedu, Robert ,  [Cultivar evaluation and megaenvironment investigation of Dioscorea cayenensis cultivars in Ghana based on the GGE Biplot analysis] ,  Cultivar evaluation and megaenvironment investigation of Dioscorea cayenensis cultivars in Ghana based on the GGE Biplot analysis
Journal Article 2006

Autor: Otoo, E. Okonkwo, C. Asiedu, Robert

Seven white yam (Dioscorea rotundata Poir.) genotypes (1 local and 6 hybrids from IITA) were evaluated in 13 environments using randomized complete block design (RCBD) with 3 replications. The environments were Fumesua (forest) from 2000 to 2004 and Wenchi (forest Guinea savannah transition) from...

Enlace original: https://cgspace.cgiar.org/handle/10568/91751

Investigación en Agricultura
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Otoo, E. ,  Okonkwo, C. ,  Asiedu, Robert ,  [Stability studies of hybrid yam (Dioscorea rotundata Poir.) genotypes in Ghana] ,  Stability studies of hybrid yam (Dioscorea rotundata Poir.) genotypes in Ghana

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