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...
Balogun, M.
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Ng, S.Y.C.
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Fawole, I.
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Shiwachi, H.
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Kikuno, H.
,
[Relative effects of Uniconazole p and other growth regulators on micropropagation ratio of yam (Dioscorea spp.) plantlets at different growth phases]
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Relative effects of Uniconazole p and other growth regulators on micropropagation ratio of yam (Dioscorea spp.) plantlets at different growth phases
Park, B.
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Kikuno, H.
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Asiedu, Robert
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Park, C.H.
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[Studies on the antioxidant and whitening properties of extracts from tuber of yams (Dioscorea spp.)]
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Studies on the antioxidant and whitening properties of extracts from tuber of yams (Dioscorea spp.)
Balogun, M.
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Ng, N.Q.
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Fawole, I.
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Kikuno, H.
,
[Variations in microtuberization among local, improved and exotic yam accessions in Nigeria]
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Variations in microtuberization among local, improved and exotic yam accessions in Nigeria
Seed yams are an essential input into the Dioscorea yam economy of West Africa. Till date, the agronomic separation of seed yam production from that of ware tuber production for food has not been fully achieved. ‘Milking’ of food tubers to get seed yam continues as a dominant channel of seed yam ...
Akoroda, M.O.
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Cladius-Cole, B.
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Kikuno, H.
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Okonkwo, C.C.
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Aighewi, B.A.
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Acha, A.I.
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Asiedu, Robert
,
[Enhancing seed yam supply systems in West Africa]
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Enhancing seed yam supply systems in West Africa
Soil physicochemical properties were determined for soils under cropland and forest at the headquarters of the International Institute of Tropical Agriculture in Ibadan, Southwestern Nigeria to examine the 30-year effects of different land use on the fertility of five soil series toposequences un...
Watanabe, Y.
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Kikuno, H.
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Asiedu, Robert
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Masunaga, T.
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Wakatsuki, T.
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[Comparison of physicochemical properties of soils under contrasting land use systems in Southwestern Nigeria]
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Comparison of physicochemical properties of soils under contrasting land use systems in Southwestern Nigeria
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...
Babil, P.K.
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Kikuno, H.
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Shiwachi, H.
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Toyohara, H.
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Fujigaki, J.
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Fujimaki, H.
,
Asiedu, Robert
,
[Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)]
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Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.)
The production of clean planting materials at the genebank for clonal prppagated crops, such as yam, is essential. The trainee, who came from the National Genebank of Kenya, undertook the training program on vine propagation (VP) tissue culture technique for yam in vitro genebanking from 1 octobe...
Kikuno, H.
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[Rapid and mass propagation system for yams (Dioscorea spp.) based on vine cuttings and tissue culture techniques for germplasm collection: onthe job training]
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Rapid and mass propagation system for yams (Dioscorea spp.) based on vine cuttings and tissue culture techniques for germplasm collection: onthe job training
Mini tubers were produced from two varieties of Dioscorea rotundata using vine cuttings planted in carbonized rice husk or coco-peat in a screen house. The cuttings established better and produced more mini tubers in carbonized rice husk than in coco-peat 100 days after planting. Vine cuttings of...
Shiwachi, H.
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Kikuno, H.
,
Asiedu, Robert
,
[Mini tuber production using yam (Dioscorea rotundata) vines]
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Mini tuber production using yam (Dioscorea rotundata) vines