DSpace Collection:http://dspace.univ-setif.dz:8888/jspui/handle/123456789/3632026-05-30T18:19:29Z2026-05-30T18:19:29ZCaractérisation de la flore adventice des cultures maraichères de la région de Jijel (Algérie)BOUDJEDJOU, L.FENNI, M.http://dspace.univ-setif.dz:8888/jspui/handle/123456789/3642015-03-23T12:25:57Z2011-01-01T00:00:00ZTitre: Caractérisation de la flore adventice des cultures maraichères de la région de Jijel (Algérie)
Auteur(s): BOUDJEDJOU, L.; FENNI, M.
Résumé: Weed flora of annual crops in Jijel were caracterized in three successive growing seasons
by measuring species frequencies and abundance over 65 fields. A total of 191 species in 111 genera
were recorded representing a total of 44 families with Asteraceae, Fabaceae, Poaceae, Brassicaceae,
Geraniaceae and Polygonaceae predominating. Only 4 species (namely Polygonum aviculare L.,
Chenopodium album L., Cyperus esculentus L., Amaranthus retroflexus L. and Convolvulus arvensis
L., occurred in more than 50% of the plots. The plots where the density exceeded 20 plants per m2
were observed for Cyperus esculentus. The total number of weed species per plots varied from 4 to 65
with a median species number of 20. In most of the plots, the weed community was mainly composed of species having a small density (less than one plant per m2) and was dominated by only one or two species in half of the plots.2011-01-01T00:00:00Z