OBTENTION DE PLANTULES D'IGNAME (D. alata ET D. cayenensis-rotundata) PAR CULTURE D'EMBRYONS IN VITRO

R. Arnolin, F. Gamiette and L. Degras

No 260002, 25th Annual Meeting, July 1-6, 1989, Gosier, Guadeloupe from Caribbean Food Crops Society

Abstract: La culture d'embryon joue un rôle croissant dans l'amélioration des plantes. L'amélioration de l'igname n'en bénéficie pas encore. Des embryons de D. cayenensis-rotundata hybrides et d'une variété traditionnelle de D. alata ont été prélevés après désinfection et cultivés sur un milieu de Murashige et Skoog modifié. La germination des embryons a été obtenue. Les plantules sont au stade 3-4 feuilles pour D. alata ; celles de D. cayenensis sont en partie au champ. Si l'origine de celles-ci ne pose pas de problème, l'origine des plantules de D. alata en pose. Différentes hypothèses d'interprétation et les perspectives de valorisation de la technique sont discutées. ----- In vitro culture of embryo is playing an increasing part in plant breeding. Yam improvement is not yet benefiting from. Embryos of D. cayenensis-rotundata hybrids and of a traditional variety of D. alata have been picked, desinfected, then cultivated on a modified MS media. Embryo germination has been obtained. Plantlets have reached stage 3-4 leaves for D. alata and those of D. cayenensis-rotundata are partially in the field. If as for this last ones their origin are not problematic, question stand for the D. alata ones, Different hypothesis of interpretation and prospects for valorization of the technics are discussed.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 15
Date: 1989-07-01
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Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs89:260002

DOI: 10.22004/ag.econ.260002

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