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Journal Article 2003-12

Autor: Abang, Mathew M. Winter, S. Mignouna, H.D. Green, K.R. Asiedu, Robert

Water yam (Dioscorea alata L.) is the most widely cultivated yam species globally. The major limitation to the profitable and sustainable production of D. alata is its susceptibility to anthracnose disease. The availability of resistant varieties could potentially form the cornerstone of an integ...

Enlace original: https://cgspace.cgiar.org/handle/10568/96374

Investigación en Agricultura
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Abang, Mathew M. ,  Winter, S. ,  Mignouna, H.D. ,  Green, K.R. ,  Asiedu, Robert ,  [Molecular taxonomic, epidemiological and population genetic approaches to understanding yam anthracnose disease] ,  Molecular taxonomic, epidemiological and population genetic approaches to understanding yam anthracnose disease
Journal Article 2014

Autor: Balogun, M. Maroya, N. Asiedu, Robert

Yam production is constrained by scarcity of clean seed, pests, diseases and low soil fertility in the informal seed system, which is still operational, causing up to 90% yield losses. Although meristem culture can be effective for producing healthy seed yam, its use is limited by slow rate of re...

Enlace original: https://cgspace.cgiar.org/handle/10568/75918

Investigación en Agricultura
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Balogun, M. ,  Maroya, N. ,  Asiedu, Robert ,  [Status and prospects for improving yam seed systems using temporary immersion bioreactors] ,  Status and prospects for improving yam seed systems using temporary immersion bioreactors
Journal Article 2014

Autor: Muthamia, Z.K. Nyende, A.B. Mamati, E.G. Ferguson, M. Wasilwa, J.

Yam (Dioscorea spp.), a traditional crop in Kenya has not undergone improvement and little has been done to understand its genetic background. The taxonomy and phylogeny of the local landraces has not been fully studied. The main cultivated species is Dioscorea minutiflora Engl. Others found with...

Enlace original: https://cgspace.cgiar.org/handle/10568/75889

Investigación en Agricultura
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Muthamia, Z.K. ,  Nyende, A.B. ,  Mamati, E.G. ,  Ferguson, M. ,  Wasilwa, J. ,  [Determination of ploidy among yam (Dioscorea spp.) landraces in Kenya by flow cytometry] ,  Determination of ploidy among yam (Dioscorea spp.) landraces in Kenya by flow cytometry
Journal Article 2009

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

The genetic diversity of 219 accessions of Guinea yam germplasm from Benin, Congo, Côte d’ Ivoire,Equatorial Guinea, Gabon, Ghana, Nigeria, Sierra Leone and Togo was accessed using 15 microsatelliteloci. High diversity of 0.677 was found among the accessions. An allelic average of 8.06 andpolymor...

Enlace original: https://cgspace.cgiar.org/handle/10568/91519

Investigación en Agricultura
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Obidiegwu, J.E. ,  Kolesnikova-Allen, M. ,  Ene-Obong, E.E. ,  Muoneke, C.O. ,  Asiedu, Robert ,  [SSR markers reveal diversity in Guinea yam (Dioscorea cayenensis/D. rotundata) core set] ,  SSR markers reveal diversity in Guinea yam (Dioscorea cayenensis/D. rotundata) core set
Journal Article 2002

Autor: Ortiz, R. Vries, J. de Toenniessen, G.
Enlace original: https://cgspace.cgiar.org/handle/10568/92741

Investigación en Agricultura
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Ortiz, R. ,  Vries, J. de ,  Toenniessen, G. ,  [Securing the harvest: biotechnology, breeding, and seed systems for African crops] ,  Securing the harvest: biotechnology, breeding, and seed systems for African crops
Journal Article 2009-04

Autor: Tchabi, A. Burger, S. Coyne, D.L. Hountondji, F.C.C. Lawouin, L. Wiemken, A. Oehl, F.

Yam (Dioscoreaspp.) is a tuberous staple foodcrop of major importance in the sub-Saharan savannas ofWest Africa. Optimal yields commonly are obtained only inthe first year following slash-and-burn in the shifting cul-tivation systems. It appears that the yield decline in sub-sequent years is not ...

Enlace original: https://cgspace.cgiar.org/handle/10568/90218

Investigación en Agricultura
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Tchabi, A. ,  Burger, S. ,  Coyne, D.L. ,  Hountondji, F.C.C. ,  Lawouin, L. ,  Wiemken, A. ,  Oehl, F. ,  [Promiscuous arbuscular mycorrhizal symbiosis of yam (Dioscorea spp.), a key staple crop in West Africa] ,  Promiscuous arbuscular mycorrhizal symbiosis of yam (Dioscorea spp.), a key staple crop in West Africa
Journal Article 2010

Autor: Babil, P.K. Kikuno, H. Shiwachi, H. Toyohara, H. Fujigaki, J. Fujimaki, H. Asiedu, Robert

The genus Dioscorea is considered to be one of the most difficult groups for cyto-taxonomic studies because of the large number and small size of the chromosomes. The objective of the present study was to develop an efficient method of chromosome observation by identifying the optimum time for co...

Enlace original: https://cgspace.cgiar.org/handle/10568/90365

Investigación en Agricultura
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Babil, P.K. ,  Kikuno, H. ,  Shiwachi, H. ,  Toyohara, H. ,  Fujigaki, J. ,  Fujimaki, H. ,  Asiedu, Robert ,  [Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)] ,  Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)
Journal Article 1996

Autor: Osai, E.O. Ikotun, T. Asiedu, Robert Hahn, S.K.

The response of yam (Dioscorea) cultivars to artificial and natural infections with minisett rot pathogens was investigated. None of the 20 yam cultivars were resistant to Sclerotium rolfsii [Corticium rolfsii] or Trichoderma longibrachyatum. Cultivars TDa 84/093, 85/236, 85/257, TDr 608, 745, 81...

Enlace original: https://cgspace.cgiar.org/handle/10568/101009

Investigación en Agricultura
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Osai, E.O. ,  Ikotun, T. ,  Asiedu, Robert ,  Hahn, S.K. ,  [Susceptibility of yam cultivars to minisett rot pathogens] ,  Susceptibility of yam cultivars to minisett rot pathogens
Journal Article 2019-03

Autor: Loko, Y.L.E. Gavoedo, D.M. Toffa, J. Orobiyi, A. Thomas-Odjo, A.A. Tamò, M.

Stored yam chips are attacked by Dinoderus porcellus Lesne, which can cause significant losses. The predator Alloeocranum biannulipes Montr. and Sign. is a potential biological control agent of D. porcellus. The biology, predation and mating behaviour of A. biannulipes were investigated under lab...

Enlace original: https://cgspace.cgiar.org/handle/10568/101681

Investigación en Agricultura
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Loko, Y.L.E. ,  Gavoedo, D.M. ,  Toffa, J. ,  Orobiyi, A. ,  Thomas-Odjo, A.A. ,  Tamò, M. ,  [Life table of the predator Alloeocranum biannulipes Montrouzier and Signoret (Hemiptera: Reduviidae) and a test of its ability to suppress populations of Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) in stored yam chips] ,  Life table of the predator Alloeocranum biannulipes Montrouzier and Signoret (Hemiptera: Reduviidae) and a test of its ability to suppress populations of Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) in stored yam chips
Journal Article 2017

Autor: Thomas-Sharma, Sara Andrade-Piedra, J.L. Carvajal-Yepes, Monica Hernández Nopsa, J.F. Jeger, Michael Jones, Roger Kromann, P. Legg, J.P. Yuen, Jonathan Forbes, G. Garrett, K.A.
Enlace original: https://cgspace.cgiar.org/handle/10568/81225

Investigación en Agricultura
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Thomas-Sharma, Sara ,  Andrade-Piedra, J.L. ,  Carvajal-Yepes, Monica ,  Hernández Nopsa, J.F. ,  Jeger, Michael ,  Jones, Roger ,  Kromann, P. ,  Legg, J.P. ,  Yuen, Jonathan ,  Forbes, G. ,  Garrett, K.A. ,  [A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops] ,  A risk assessment framework for seed degeneration: Informing an integrated seed health strategy for vegetatively-propagated crops

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