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Journal Article 2006

Autor: Shiwachi, H. Kikuno, H. Okonkwo, C.C. Asiedu, Robert

Growth of varieties of Dioscorea alata and D. rotundata were stunted when they were grown in nutrient solutions containing 5 to 60 mg l−1 Fe. In D. alata variety TDa 95/00361, plants grown in 60 mg l−1 Fe solution exhibited reductions of 29–65% in plant height, leaf length and width, number of le...

Enlace original: https://cgspace.cgiar.org/handle/10568/91411

Investigación en Agricultura
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Shiwachi, H. ,  Kikuno, H. ,  Okonkwo, C.C. ,  Asiedu, Robert ,  [Iron toxicity symptoms in yams (Dioscorea spp.) grown in water culture] ,  Iron toxicity symptoms in yams (Dioscorea spp.) grown in water culture
Journal Article 2006

Autor: Balogun, M. Fawole, I. Ng, S.Y.C. Ng, N.Q. Shiwachi, H. Kikuno, H.

Single node cuttings from pathogen-tested in vitro plantlets of white guinea yam (D. rotundata), cultivar TDr 93–23, were cultured in tuberization and half- and full-strength Murashige and Skoog media with 5% or 8% sucrose, with or without agar, in light or darkness and at 25 or 18°C. Microtuberi...

Enlace original: https://cgspace.cgiar.org/handle/10568/91374

Investigación en Agricultura
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Balogun, M. ,  Fawole, I. ,  Ng, S.Y.C. ,  Ng, N.Q. ,  Shiwachi, H. ,  Kikuno, H. ,  [Interaction among cultural factors in microtuberization of white yam (Dioscorea rotundata)] ,  Interaction among cultural factors in microtuberization of white yam (Dioscorea rotundata)
Journal Article 2007

Autor: Kikuno, H. Matsumoto, R. Shiwachi, H. Toyohara, H. Asiedu, Robert
Enlace original: https://cgspace.cgiar.org/handle/10568/93023

Investigación en Agricultura
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Kikuno, H. ,  Matsumoto, R. ,  Shiwachi, H. ,  Toyohara, H. ,  Asiedu, Robert ,  [Comparative effects of explants sources and age of plant on rooting, shooting and tuber formation of vine cuttings of yams (Dioscorea spp.)] ,  Comparative effects of explants sources and age of plant on rooting, shooting and tuber formation of vine cuttings of yams (Dioscorea spp.)
Journal Article 2004

Autor: Balogun, M.O. Ng, S.Y. Shiwachi, H. Ng, N.Q. Fawole, I.

Single node cuttings of two genotypes each of Dioscorea alata and D. rotundata from both plants grown in screen houses and in vitro plantlets were cultured in a tuberization medium. The screen house explants had significantly higher plantlet tuberization and primary nodal complex formation, and m...

Enlace original: https://cgspace.cgiar.org/handle/10568/103297

Investigación en Agricultura
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Balogun, M.O. ,  Ng, S.Y. ,  Shiwachi, H. ,  Ng, N.Q. ,  Fawole, I. ,  [Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata] ,  Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata
Journal Article 2003-04

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

A reliable means to induce sprouting in dormant seed tubers of yams (Dioscorea species) is required to enhance flexibility in planting date and rate of propagation of the crop. Experiments were conducted to assess the potential of two gibberellin inhibitors, Uniconazole-P and Prohexadione-calcium...

Enlace original: https://cgspace.cgiar.org/handle/10568/96362

Investigación en Agricultura
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Shiwachi, H. ,  Ayankanmi, T.G. ,  Asiedu, Robert ,  Onjo, M. ,  [Induction of sprouting in dormant yam (Dioscorea spp.) tubers with inhibitors of gibberellins] ,  Induction of sprouting in dormant yam (Dioscorea spp.) tubers with inhibitors of gibberellins
Journal Article 2004

Autor: Shiwachi, H. Okonkwo, C. Asiedu, Robert

Symptoms of nutritional deficiencies in D. alata and D. rotundata were observed when yam plants were grown in nutrient solutions from which any of the following had been omitted: N, P, K, Ca, Mg, Zn, Fe, B, Mn, Cu and Mo. The symptoms of deficiency of major elements were visible on plants of both...

Enlace original: https://cgspace.cgiar.org/handle/10568/103377

Investigación en Agricultura
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Shiwachi, H. ,  Okonkwo, C. ,  Asiedu, Robert ,  [Nutrient deficiency symptoms in yams (Dioscorea spp.)] ,  Nutrient deficiency symptoms in yams (Dioscorea spp.)
Journal Article 2014

Autor: Balogun, M. Ng, S.Y.C. Fawole, I. Shiwachi, H. Kikuno, H.

Scarcity of seed, pest and diseases are major constraints to yam production. Tissue culture techniques of meristem culture combined with heat therapy have been used to produce high-yielding virus-tested plantlets of root crops, which are later multiplied through micropropagation. However, the mic...

Enlace original: https://cgspace.cgiar.org/handle/10568/76045

Investigación en Agricultura
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Balogun, M. ,  Ng, S.Y.C. ,  Fawole, I. ,  Shiwachi, H. ,  Kikuno, H. ,  [Relative effects of Uniconazole p and other growth regulators on micropropagation ratio of yam (Dioscorea spp.) plantlets at different growth phases] ,  Relative effects of Uniconazole p and other growth regulators on micropropagation ratio of yam (Dioscorea spp.) plantlets at different growth phases
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.)
Conference Paper 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 c...

Enlace original: https://cgspace.cgiar.org/handle/10568/90870

Investigación en Agricultura
Enlace permanente
Babil, P.K. ,  Kikuno, H. ,  Shiwachi, H. ,  Toyohara, H. ,  Fujigaki, J. ,  Fujimaki, H. ,  Asiedu, Robert ,  [Optimum time for collecting root samples for chromosome observation in Dioscorea spp.] ,  Optimum time for collecting root samples for chromosome observation in Dioscorea spp.

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