affiliation not provided to SSRN, University of Montpellier - INRAE, University of Montpellier - INRAE, University of Montpellier - INRAE, University of Montpellier - INRAE, University of Montpellier - INRAE, University of Montpellier - INRAE, affiliation not provided to SSRN, French National Institute for Agriculture, Food and Environment (INRAE), University of Montpellier - INRAE, affiliation not provided to SSRN, University of Montpellier - INRAE and Institut National de la Recherche Agronomique