AUTHOR=Roberto Sergio Ruffo , Novello Vittorino , Fazio Gennaro TITLE=Editorial: New Rootstocks for Fruit Crops: Breeding Programs, Current Use, Future Potential, Challenges and Alternative Strategies JOURNAL=Frontiers in Plant Science VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2022.878863 DOI=10.3389/fpls.2022.878863 ISSN=1664-462X