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Journal Article 1999

Autor: Barker, D.J. Keatinge, J.D.H. Asiedu, Robert

A range of physical means of manipulating yam tuber dormancy was tested, including the use of temperature, water, electric shock, microwave, heat and storage treatments. Most treatments had very little practical effect on tuber dormancy though differences in dormancy length between clones were de...

Enlace original: https://cgspace.cgiar.org/handle/10568/96007

Investigación en Agricultura
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Barker, D.J. ,  Keatinge, J.D.H. ,  Asiedu, Robert ,  [The potential of physical means for the manipulation of yam tuber dormancy] ,  The potential of physical means for the manipulation of yam tuber dormancy
Journal Article 2004

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

Yam mosaic virus (YMV), genus Potyvirus; family Potyviridae is the most important virus infecting Dioscorea spp. in the tropics. It induces a variety of symptoms ranging from mild mosaic on leaves of infected plants to stunted growth. Field and laboratory studies were conducted in Nigeria to iden...

Enlace original: https://cgspace.cgiar.org/handle/10568/103307

Investigación en Agricultura
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Odu, B.O. ,  Asiedu, Robert ,  Hughes, J. ,  Shoyinka, S.A. ,  Oladiran, O.A. ,  [Evaluation of resistance to yam mosaic virus (YMV), genus Potyvirus in white yam (Dioscorea rotundata Poir.)] ,  Evaluation of resistance to yam mosaic virus (YMV), genus Potyvirus in white yam (Dioscorea rotundata Poir.)
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 2008-04

Autor: Adeniyi, O.J. Adetimirin, V.O. Ingelbrecht, I.L. Asiedu, Robert

In vitro culture media capable of regenerating moderate to high shoots and/or plantlets from meristems of two yam species – Dioscorea rotundata and Dioscorea alata within comparable duration of 10 weeks as commonly obtained in other monocots and root and tuber crops were investigated. The study c...

Enlace original: https://cgspace.cgiar.org/handle/10568/90907

Investigación en Agricultura
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Adeniyi, O.J. ,  Adetimirin, V.O. ,  Ingelbrecht, I.L. ,  Asiedu, Robert ,  [Shoot and plantlet regeneration from meristems of Dioscorea rotundata poir and Dioscorea alata L.] ,  Shoot and plantlet regeneration from meristems of Dioscorea rotundata poir and Dioscorea alata L.
Journal Article 2006

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

Nineteen white yam (Dioscorea rotundata Poir.) genotypes were grown in four agroecological zones in Nigeria for 2 years to study their responses to yam virus diseases, and to investigate the influence of genotype × environment (G × E) interactions on their reactions to virus infection, using the ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91350

Investigación en Agricultura
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Odu, B.O. ,  Asiedu, Robert ,  Shoyinka, S.A. ,  Hughes, J.D. ,  [Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in Nigeria] ,  Reaction of white guinea yam (Dioscorea rotundata Poir.) genotypes to virus diseases in four agroecological zones in 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 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 2011

Autor: Oluwatayo, J.I. Asiedu, Robert Adesiyan, S.O.

Field and storage evaluation of four yam cultivars TDr 131 (Dioscorea rotundata), TDa 85/00257 (D. alata), Igangan (Dioscorea cayenensis), TDe 3041 (D. esculenta) in intercrop with three other crops, cocoyam (Xanthosoma sagittifolium), ginger (Zingiber oficinale) and maize (Zea mays) to the occur...

Enlace original: https://cgspace.cgiar.org/handle/10568/88141

Investigación en Agricultura
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Oluwatayo, J.I. ,  Asiedu, Robert ,  Adesiyan, S.O. ,  [Studies on population buildup of Scutellonema bradys in Dioscorea species] ,  Studies on population buildup of Scutellonema bradys in Dioscorea species
Journal Article 2007

Autor: Ile, E.I. Craufurd, Peter Q. Asiedu, Robert Battey, N.H.

The objective of this study was to quantify the effect of photoperiod on the duration from vine (shoot) emergence to flowering in white or Guinea yam (Dioscorea rotundata). The duration from vine emergence to flowering in two clonal varieties of yam (TDr 131 and TDr 99-9) was recorded at 10 diffe...

Enlace original: https://cgspace.cgiar.org/handle/10568/92198

Investigación en Agricultura
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Ile, E.I. ,  Craufurd, Peter Q. ,  Asiedu, Robert ,  Battey, N.H. ,  [Duration from vine emergence to flowering suggests a longday or rate of change of photoperiod response in white yam (Dioscorea rotundata Poir)] ,  Duration from vine emergence to flowering suggests a longday or rate of change of photoperiod response in white yam (Dioscorea rotundata Poir)
Journal Article 2003-09

Autor: Shiwachi, H. Ayankanmi, T.G. Asiedu, Robert Onjo, M.

To induce sprouting two gibberellin inhibitors, uniconazole-P (UP) and prohexadione-calcium (PC), were applied to foliage of white Guinea yam (Dioscorea rotundata) and water yam (D. alata) 30 days before harvest or to tubers at harvest. The tuber sprouting period was shortened by about 35 days in...

Enlace original: https://cgspace.cgiar.org/handle/10568/96360

Investigación en Agricultura
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Shiwachi, H. ,  Ayankanmi, T.G. ,  Asiedu, Robert ,  Onjo, M. ,  [Influence of exogenous gibberellins inhibitors on tuber sprouting in yam] ,  Influence of exogenous gibberellins inhibitors on tuber sprouting in yam

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