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Objectif: Faire l’inventaire des champignons associes aux pourritures des tubercules d’ignames de la variete "kponan" en post-recolte. Methodologie et resultats: Un echantillonnage a ete effectue dans trois marches du District d’Abidjan afin de collecter les tubercules d’igname presentant des symptomes caracteristiques de pourritures puis les champignons associes a ces symptomes ont ete isoles et un test de pathogenecite a ete effectue avec ces champignons. Cinq types de symptomes ont ete observes sur les tubercules collectes. Il s’agit de : pourriture humide de coloration marron, brune, de pourriture seche de coloration marron, verte et noire. De ces symptomes, cinq champignons ont ete isoles. Il s’agit de : Botryodiplodia sp. ; Penicillium sp. ; Aspergillus sp., Mucor sp. et Colletotrichum sp. Parmi ces champignons, Botryodiplodia sp. a ete le plus isole avec une frequence de 37,5 %. Les tests de pathogenecite effectues avec ces champignons ont montre que Aspergillus sp. a ete le plus pathogenique. Conclusion et application des resultats: cette etude constitue une etude preliminaire qui pourrait etre une base de donnees pour mener une eventuelle lutte contre ces champignons responsables de pourritures en postrecolte Mots cles: champignons, ignames, post-recolte, pourritures, symptomes English Abstract Objective: To make an inventory of the associated fungi rots in yam tubers of the variety "kponan" in postharvest. Methodology and Results: Sampling was conducted in three markets of Abidjan District to collect yam tubers with characteristic symptoms of rot and then fungi associated with these symptoms were isolated and a pathogenicity test was conducted with these fungi. Five kinds of symptoms were observed on collected tubers. These are: brown wet rot, brown, green and black dry rot. Five fungi were isolated from these symptoms. It is Botryodiplodia sp., Penicillium sp., Aspergillus sp., Mucor sp. and Colletotrichum sp. Among these fungi, Botryodiplodia sp. was the most isolated with a frequency of 37.5%. The pathogenicity tests with these fungi showed that Aspergillus sp. was the most pathogenic. Conclusion and application of Results: This study is a preliminary study which could be a database to control rot caused by postharvest fungi. Keywords: fungi, yams, postharvest, rot, symptoms

journal of applied biosciences

Champignons responsables de pourritures de l’igname &lt;i&gt;Dioscorea cayenensis-rotundata&lt;/i&gt; variété &lt;i&gt;kponan&lt;/i&gt; en post-récolte