Ripening Period Vineyard Management by Stan Grant, Viticulturist - JULY 6, 2020

The ripening period is the home stretch of the growing season.  During this time, grape berries experience dramatic physical and chemical changes as they transition from hard, green, acidic, and unpalatable to soft, pigmented, sweet, and flavorful.  These changes and continued berry expansion draw heavily on internal vine resources, creating what has been termed crop stress.  After ripening begins, the viticultural focus is supplementing resources and protecting vines as needed to sustain their ripening functions.  Before turning our attention to ripening period vineyard management, we need some background…

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