Giusseppe Colla. Professor in Horticulture at the Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, ItalyVisiting scientist at Department of Horticulture and Landscape Architecture at Purdue University.Visiting scientist at Department of Vegetable Crops at University of California, Davis, US.Project Leader of sub-group ‘Plant biostimulants –Claims –Tolerance to abiotic stress’ from 2019 to 2024 for preparation of technical Specification and European Standard within the framework of Mandate M/564 on a standardisation request to the European Committee for Standardisation as regards the EU fertilising products in support of Regulation (EU) 2019/1009 of the European Parliament and of the Council.