Forcing vine regrowth: a new technique to delay grape ripening until a cooler period

Abstract

One of the most important climate change-related effects on wine grapes is the advance in harvest period. A strategy to counteract this effect consists in postponing berry ripening until the conditions are cooler. A technique for forcing vine regrowth to delay grape ripening by more than two months was studied. Forced vines produced smaller berries with lower pH and higher acidity and anthocyanin concentration than non-forced vines.