Criteria for the registration of Medicago polymorpha L. and Lolium rigidum Gaud. varieties in a Voluntary Register in Italy

1 Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Research Centre for Fodder Crops and Dairy Productions, Lodi, Italy, Email luciano.pecetti@entecra.it 2 Ex INRAN ENSE, Milan, Italy, Email g.corsi@ense.it 3 Ministry of Agriculture, Food and Forestry Policy, Rome, Italy, Email f.sorgoni@mpaaf.gov.it 4 Department of Applied Biology, University of Perugia, Italy, Email torricel@unipg.it