00604    a2200193   4500502002300000653002600023100002600049300001500075245011300090650002400203650002000227650001000247130000700257710009400264041000700358041000700365653002800372651001000400  aThèse d'exercice1 aSciences agronomiques  aHoungnibo, Grégoire  aXIII-77 p.  aMultiplication and distribution pattern of cowpea yellow mosaic virus in cowpea, vigna unguiculata (l.) walp  aPRODUCTION VEGETALE  aVIRUS MOSAIQUE   aVIGNA  lEn  aAbomey-Calavi, Université nationale du Bénin, Faculté des Sciences Agronomiques, BJ  bFr  bEn 1aProduction végétale  aBENIN