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Observations Sur La Response De Xanthosoma Sagittifolium A Des Traitements Gibberelliques En Vue De Sa Floraison

Author

Listed:
  • Degras, L.
  • Gamiette, F.
  • Surad, C.

Abstract

X. sagittifolium cv Malanga rouge a été traité !l 250 et 1500 ppm avee de la gibberelline en 1983. La floraison a atteint 99% avec 250 ppm meilleur traitement. Mais, en 1984, ce même traitement a été décevant sur oe cultiva comme sur d'autres. Faut-il en rendre responsable l'infestation du terrain par Pythium myriotylum an agent de d{périssement du Malanga? Par ailleurs, de d€formations des rhizomes secondaires c:onsecutives au traitement gibberelliqm.• apparaissent affecter la génération végétative suivante. ----- X. sagittifolium cv Malanga rouge was treated in 1983 with 250 and 1500 ppm gibberellic acid. Flowering reached 99% with 250 ppm which was the best treatment. But, in 1984, this same treatment was disappointing over this cultivar as well as on others, Can this be related to the plot infestation by Pythium myriotylum, an agent of the tannia leaf burning disease? Meanwhile, deformations of secondary rhizomes resulting from the gibberellic treatment seem to affect the next vegetative generation.

Suggested Citation

  • Degras, L. & Gamiette, F. & Surad, C., 1985. "Observations Sur La Response De Xanthosoma Sagittifolium A Des Traitements Gibberelliques En Vue De Sa Floraison," 21st Annual Meeting, September 8-13, 1985, Port of Spain, Trinidad and Tobago 261377, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs85:261377
    DOI: 10.22004/ag.econ.261377
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