1. INRA; UMR 1069, Soil Agro and HydroSystem; Rennes France
2. Agrocampus Ouest, UMR 1069; Soil Agro and HydroSystem Rennes, France
3. IDIAP Research Institute; Martigny Switzerland
4. Agrocampus Ouest; UMR 6074, IRISA; Rennes France
5. INRIA; UMR 6074, IRISA; Rennes France