Originally developed to combat phylloxera, rootstocks are now being researched as a solution to one of viticulture’s challenges: drought. Dr. Suraj Kar, Assistant Professor of Viticulture at Cal Poly San Luis Obispo, explores the 150-year history of rootstocks and their evolving purpose. He explains the complex influence rootstocks have on drought tolerance, vine vigor, and fruit set—and how long-term research is identifying those best suited to support vine longevity in a changing climate.
Resources:
- 110: How to Develop a New Vineyard Site
- 171: How to Farm Wine Grapes for Climate Change
- Differences in grapevine rootstock sensitivity and recovery from drought are linked to fine root cortical lacunae and root tip function
- Foundation Plant Sciences Grape Registry: Grapevine Varieties
- Irrigation and rootstock effects on the phenolic concentration and aroma potential of Vitis vinifera L. cv. Cabernet Sauvignon grapes
- Researchers pinpoint drought-resistant traits in grape rootstocks
- Root pressure–volume curve traits capture rootstock drought tolerance
- Suraj Kar, Ph.D
- The influence of grapevine rootstocks on scion growth and drought resistance
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