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Etude De La Production De Bulbilles Chez D. Alata Cv Belep - Consequences Sur Le Rendement En Tubercules

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  • Zinsou, Claude

Abstract

Les bulbilles sont des tubercules aériens qui ont contribué naturellement à la dispersion des espèces ayant l'aptitude à en produire, mais souvent de manière sporadique. L'intérêt porté à la maîtrise de la production des bulbilles vient du fait qu'elle peut constituer pour certaines espèces, une voie alternative originale à la production de semences d'igname. Les travaux rapportés dans ce papier reposent sur les observations conduites sur les facteurs de promotion de la bulbification chez D. alata cv Belep. Depuis 2 ans nous obtenons une production régulière de bulbilles sur cette variété à partir de tubercules entiers ou fragmentés. Le nombre moyen total de bulbilles récoltées par plante se situe entre 20 et 30 et le nombre moyen de bulbilles utilisables comme semences pour la culture suivante est compris entre 6 et 10. La formation des bulbilles (phénomène terminal du cycle) ne semble pas être en compétition avec la production des tubercules car les rendements en tubercules observés donnent des valeurs comprises entre 2.3 et 3.8 kg par plante selon le poids des tubercules utilisés comme matériel de plantation.

Suggested Citation

  • Zinsou, Claude, 2001. "Etude De La Production De Bulbilles Chez D. Alata Cv Belep - Consequences Sur Le Rendement En Tubercules," 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago 256669, Caribbean Food Crops Society.
    • Handle: RePEc:ags:cfcs01:256669
    DOI: 10.22004/ag.econ.256669
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    1. Zinsou, Claude & Bade, Pascale & Vaillant, Victor, 2001. "Potentialites De Production De Tubercules A Partir De Bulbilles Et De Vitroplants Chez D. Alata Cv Belep," 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago 256672, Caribbean Food Crops Society.
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    1. Zinsou, Claude & Bade, Pascale & Vaillant, Victor, 2001. "Potentialites De Production De Tubercules A Partir De Bulbilles Et De Vitroplants Chez D. Alata Cv Belep," 37th Annual Meeting, July 15-20, 2001, Port of Spain, Trinidad and Tobago 256672, Caribbean Food Crops Society.

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