RAPID MULTIPLICATION OF TANNIA (Xanthosoma sagittifolium Schott): AN ADVANCED TECHNIQUE FOR DEVELOPING COUNTRIES

F.D. McDonald, R.E. Fletcher and G.J. Muller

No 259352, 26th Annual Meeting, July 29 to August 4, 1990, Mayaguez, Puerto Rico from Caribbean Food Crops Society

Abstract: A rapid multiplication technique of tannia (tanier, cocoyam, Xanthosoma sagittifolium) is suggested for developing countries, in particular, the Windward Islands of Dominica, St. Lucia, St. Vincent and Grenada, where Pythium root rot or tannia rapid yellowing disease (TRYD) caused by Pythium myriotylum. has been seriously affecting tannia production. The rapid clonal multiplication of disease-free plant material is done through a two-phase production system - a combination of in vitro propagation and subsequent in vivo mini-setting. The Murashige and Skoog (1962) basal medium was used for meristem initiation and then amended by omitting benzylamino-purine (BAP), but including 0.1 mg/1 1-naphthaleneacetic acid (NAA) for prolific calli formation and plant regeneration. The technique described can improve tannia germplasm stock and at the same time provides a system that is practical and economically affordable to developing countries.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 8
Date: 1990-07-29
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs90:259352

DOI: 10.22004/ag.econ.259352

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