Barbera grape
Barbera is a red Italian wine grape variety that, as of 2000, was the third most-planted red grape variety in Italy. It produces good yields and is known for deep color, full body, low tannins and high levels of acidity.
From Wikipedia, licensed under CC BY-SA 4.0
Research Mentions
Grapevine rootstock choice changes microbes living on the leaves most
If you grow grapes, fruit trees, or roses on grafted rootstock, this shows that choice does more ...