The adaptation of cornflower in different compartments of the agricultural landscape
Résumé
Agrosystems are among habitats most affected by the decline of biodiversity. This decline is
related to the intensification of agricultural practices carried out since the 50s (simplified rotations,
fertilizer and pesticide use; ...). The study of the weed flora shows still less developed plant
communities. Currently, there is evidence of the regression of the weed flora and especially
species such as cornflower (Cyanus segetum. L). In western Europe, cornflower seems to be
present in the field only. In our investigation, we tried to determine the factors that influence the
presence of cornflower in the different compartments of a field and its border.