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Mise Au Point Sur La Lutte Integree Contre Le Fletrissement Bacterien Du A Pseudomonas Solanacearum E.F.Smith Aux Antilles Françaises

Author

Listed:
  • Prior, Ph.
  • Beramis, M.
  • Chillet, M.
  • Schmit, J.

Abstract

La lutte contre P. solanacearum dans toutes les régions tropicales demeure particulièrement difficile en raison du caractère tellurique et vasculaire de cette bactérie. En Guadeloupe et en Martinique, la lutte a été concue de façon intégrée, en conjuguant les connaissances et ressources acquises en - Pathologie Végétale ; caractérisation et agressivité des souches de race 1 (biovar I et III), détection précoce par ELISA des plants porteurs sains, survie réduite aux potentiels hydriques élevés dans les vertisols de Grande- Terre, - Amélioration des Plantes ; sélection de variétés résistantes de tomate ("Caraïbo") et d'aubergines (familles SAM et SAF), - Agronomie ; diminution de la réceptivité des oxisols par fertilisations azotées (750 uN.ha-1), - Science du Sol ; conséquences de la microstructuration des sols sur l'expression de P. solanacearum. Les recherches menées dans différentes situations pédologiques et agronomiques permettent d'envisager une production régulière. ----- P. solanacearum is a soil-borne and a xylem invading bacterium, therefore it is especially difficult to bring this tropical world-wide disease under control. In Guadeloupe and Martinique we attempted to develop integrated control by joining up knowledges and resources acquired with : - Phytopathology ; characterization and aggressiveness of race 1 (biovar I and 111) strains, early detection of latent infections in tomatoes with an ELISA test, rapid decline of bacteria in natural vertisols (Grande-Terre) when maintained at high water potential, - Plant breeding ; selection of bacterial wilt resistant tomato line (Caraïbo) and family of eggplants (SAM and SAF), - Agronomy ; nitrogen fertilising (750 uN.ha-1) resulted in a considerable decrease of oxysol receptivity to the disease. - Soil science, outcome of soil network on P. solanacearum expression. Experimentations conducted in different pedological and agronomical conditions shows it is possible to obtain regular vegetable productions.

Suggested Citation

  • Prior, Ph. & Beramis, M. & Chillet, M. & Schmit, J., 1989. "Mise Au Point Sur La Lutte Integree Contre Le Fletrissement Bacterien Du A Pseudomonas Solanacearum E.F.Smith Aux Antilles Françaises," 25th Annual Meeting, July 1-6, 1989, Gosier, Guadeloupe 259990, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs89:259990
    DOI: 10.22004/ag.econ.259990
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