Bilan de 30 ans de travaux de recherche effectués en France sur la pollinisation du colza^*

¹ INRA UMR 1099 BiO3P (Biologie des Populations appliquée à la Protection des Plantes), Domaine de la Motte, BP 35327, F 35653 Le Rheu, France
² UMR 118, APBV (Amélioration des Plantes et Biotechnologies Végétale), INRA Domaine de la Motte, BP 35327, F 35653 Le Rheu, France

^** jacqueline.pierre@rennes.inra.fr
^*** michel.renard@rennes.inra.fr

Abstract

This article is a report of nearly 30 years of investigations made at INRA Rennes on oilseed rape pollination. During that years, the cultivars diversified and with them the pollination needs. Two apparently contradictory purposes were followed: i) to optimize the pollen transfer to produce hybrid seed, ii) to reduce pollen transfer to warrant pure seeds production or to limit GMO pollen dispersal. Knowing that pollen transfers are dur to insects and wind, the role of the two vectors was respectively studied. Briefly here we show that the role of insects has often been underestimated even in the pollination of conventional (hermaphroditic) oilseed rape and that the pollen of oilseed rape is not suited to wind dispersal and is therefore transported at only short distance.