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Autor: Ng, S.Y.C.

The in vitro methods that can be used or are in use in root crop germplasm conservation and distribution are described, namely (1) normal growth storage, (2) reduced growth storage (reduced incubation temp., manipulation of culture media, both of the former), and (3) cryopreservation. The achieve...


Ng, S.Y.C.[In vitro conservation and distribution of root and tuber crop germplasm]In vitro conservation and distribution of root and tuber crop germplasm
Rossel, H.W.Thottappilly, G.Ng, S.Y.C.Hartman, G.[Quarantine aspects of the international transfer of genetic resources from the International Institute of Tropical Agriculture]Quarantine aspects of the international transfer of genetic resources from the International Institute of Tropical Agriculture

For a mixture of reasons certain tropical crops which are important as primary or secondary food staples are relatively underresearched. The modem tools of molecular and cellular biotechnology offer the opportunity not only to make substantial gains in our knowledge of these crops, but also to ov...


Asiedu, RobertFatokun, C.A.Mignouna, J.H.Ng, S.Y.C.Quin, F.M.Vuylsteke, D.R.[Underresearched tropical food crops: cowpea, banana and plantain, and yams]Underresearched tropical food crops: cowpea, banana and plantain, and yams
Ng, S.Y.C.Ng, N.Q.[Germplasm conservation in food yams (Dioscorea spp.): constraints, application and future prospects]Germplasm conservation in food yams (Dioscorea spp.): constraints, application and future prospects
Autor: Ng, S.Y.C.

At IITA, tissue culture methods, such as meristem, shoot-tip, and node-cutting cultures, are used routinely to eliminate virus infection from improved clones of cassava and yam and for micropropagating cassava, yam, sweet potato, and cocoyams. Virus-tested improved clones of cassava, yam, and swe...


Ng, S.Y.C.[Tissue culture of root and tuber crops at IITA]Tissue culture of root and tuber crops at IITA
Autor: Ng, S.Y.C.

White yam (Dioscorea rotundata Poir.) belongs to the family Dioscoreaceae, genus Dioscorea. It is also known as white Guinea yam, Guinea yam, and 8-months' yam. The center of origin of white yam is in West Africa. D. rotundata, a cultigen, is so close to D. cayenensis that it has been regarded as...


Ng, S.Y.C.[Micropropagation of white yam (Dioscorea rotundata Poir.)]Micropropagation of white yam (Dioscorea rotundata Poir.)

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