[Conditions of utilization and choice of rootstocks in Campania region [Vitis]]

campania campanie crop yield ensayos de variedades fenologia geomorfologia geomorphologie geomorphology grapevines pest resistance phenology plante porte greffe portainjertos porte greffe prove varietali rendement des cultures rendimiento de cultivos resistencia a las plagas resistenza ai parassiti rootstock crops rootstocks soil chemicophysical properties soil types tipi di suolo tipos de suelos type de sol variety trials vid vigne vitis vinifera