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Biology Of Medicinal Weeds In Winter Cereals
Adel Nadjib Chaker, Mohamed Fenni and Houcine
Laouer
Laboratoire de Valorisation des Ressources Biologiques, Faculté
des Sciences, Université Ferhat Abbes, Sétif 19000, Algérie
E-mail: Chakeran@yahoo.fry
Abstract
The spontaneous vegetation of the cultivated land is a source of selection
for genes and the molecules which one can employ in the future. The study of
cereal weeds in Constantine high plains (north-east, Algeria) enabled us to
record 254 species belonging to 34 plant families. The results indicated that
nearly 20% of these weeds are medicinal species. Annuals and broad leaved
species were predominant. The knowledge of biology and ecology of these species,
already adapted to the lands exploited by the man, would facilitate their
exploitation. In fact, they are already collected and employed by farmers. This
mechanical control method makes it possible to decrease the use of herbicides
and contribute to the protection of biodiversity. Focusing on these traditional
forms of exploitation would lead to diversification of resources and to the
adoption of an integrated agricultural development system.
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