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Journal Article 2005

Autor: Coyne, D.L. Kajumba, C. Asiedu, Robert

Over recent years, pest and disease epidemics have affected the reliability of the main food crops in Uganda. Attempts to improve crop diversity therefore, and reduce reliance on the key staple crops, have included the promotion of yam (Dioscorea spp.) through the introduction of improved cultiva...

Enlace original: https://cgspace.cgiar.org/handle/10568/91883

Investigación en Agricultura
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Coyne, D.L. ,  Kajumba, C. ,  Asiedu, Robert ,  [Expanding guinea yam (Dioscorea spp.) production in Uganda: results of a short survey in Luweero district] ,  Expanding guinea yam (Dioscorea spp.) production in Uganda: results of a short survey in Luweero district
Journal Article 2010

Autor: Ajayi, A.T. Adesoye, A.I. Asiedu, Robert Sartie, A.M.

The effects of 0.2% aqueous solution of colchicine on the survival rate and morphological features of five accessions of Dioscorea alata were investigated. Sprouting buds of two month old plants were treated with 0.2% colchicine and their performances were monitored until maturity. Survival of bu...

Enlace original: https://cgspace.cgiar.org/handle/10568/89348

Investigación en Agricultura
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Ajayi, A.T. ,  Adesoye, A.I. ,  Asiedu, Robert ,  Sartie, A.M. ,  [Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)] ,  Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)
Journal Article 2009

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

Dioscorea alata L. is a highly important crop, widely distributed in the humid and semi-humid tropics. Flow cytometry was used to determine the ploidy levels of 74 D. alata genotypes collected mainly from West African countries. Sixty three of the genotypes were found to be tetraploid, one was he...

Enlace original: https://cgspace.cgiar.org/handle/10568/90196

Investigación en Agricultura
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Obidiegwu, J.E. ,  Rodríguez, E. ,  Ene-Obong, E.E. ,  Loureiro, J. ,  Muoneke, C. ,  Santos, C. ,  Kolesnikova-Allen, M. ,  Asiedu, Robert ,  [Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry] ,  Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry
Journal Article 2008

Autor: Aduramigba-Modupe, A.O. Asiedu, Robert Odebode, A.C.

Anthracnose disease, caused by the pathogen Collectotrichum gloeosporioides Penz., is a serious challenge to the cultivation of Dioscorea alata, a major source of food and income for millions of farm households in the tropics. Five breeder’s lines and eighteen landraces of D. alata from IITA’s ge...

Enlace original: https://cgspace.cgiar.org/handle/10568/92238

Investigación en Agricultura
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Aduramigba-Modupe, A.O. ,  Asiedu, Robert ,  Odebode, A.C. ,  [Reaction of Dioscorea alata (water yam) to anthracnose disease in Nigeria] ,  Reaction of Dioscorea alata (water yam) to anthracnose disease in Nigeria
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 2011-09

Autor: Sartie, A.M. Asiedu, Robert

Progress is being made at the International Institute for Tropical Agriculture to develop molecular tools for marker-assisted selection that would complement and expedite conventional breeding approaches for genetic improvement of yams (Dioscorea spp.). F1 mapp...

Enlace original: https://cgspace.cgiar.org/handle/10568/90329

Investigación en Agricultura
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Sartie, A.M. ,  Asiedu, Robert ,  [Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata)] ,  Development of mapping populations for genetic analysis in yams (Dioscorea rotundata and D. alata)
Journal Article 2006

Autor: Egesi, Chiedozie N. Asiedu, Robert Ude, G. Ogunyemi, S. Egunjobi, J.K.

Amplified fragment length polymorphism (AFLP) markers were employed to assess intraspecific variability in water yam (Dioscorea alata L.). Fifty-three accessions of diverse geographic origins in West and Central Africa (Benin, Côte d'Ivoire, Ghana, Nigeria and Chad) and Puerto Rico were analysed ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91764

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Asiedu, Robert ,  Ude, G. ,  Ogunyemi, S. ,  Egunjobi, J.K. ,  [AFLP marker diversity in water yam (Dioscorea alata L.)] ,  AFLP marker diversity in water yam (Dioscorea alata L.)
Journal Article 2011-01

Autor: Otegbayo, B. Bokanga, M. Asiedu, Robert

Yam (Dioscorea spp.) is the second most important root and tuber crop in Africa after cassava. This study was conducted to determine the relationship between physicochemical properties of yam starch (amylose and amylopectin, swelling, solubility and water binding capacity) and the textural qualit...

Enlace original: https://cgspace.cgiar.org/handle/10568/82645

Investigación en Agricultura
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Otegbayo, B. ,  Bokanga, M. ,  Asiedu, Robert ,  [Physicochemical properties of yam starch: effect on textural quality of yam food product (pounded yam)] ,  Physicochemical properties of yam starch: effect on textural quality of yam food product (pounded yam)
Journal Article 2008

Autor: Shiwachi, H. Kikuno, H. Fashola, R. Asiedu, Robert

Yam cultivation in dry season was tested in the farmer’s field at inland valley in Niger state, Nigeria. Water yam (Dioscorea alata) variety TDa 95/00328 had the greater response to the gibberellin inhibitor prohexadione-calcium (PC). The sprouting period of PC treated tuber was 21 – 27 days at D...

Enlace original: https://cgspace.cgiar.org/handle/10568/90795

Investigación en Agricultura
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Shiwachi, H. ,  Kikuno, H. ,  Fashola, R. ,  Asiedu, Robert ,  [Enhancing offseason yam production in Nigeria] ,  Enhancing offseason yam production in Nigeria

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