Abstract
Cold hardiness and water content were measured regularly on one-year-old cane cuttings of bearing Concord grapevines in East Lansing, Michigan from Sept 1998 to April 1999 and Jan to April of 2000. Daily ambient temperatures were recorded by an automatic agricultural weather station. Single and multiple linear correlations and regressions were conducted among cold hardiness, tissue water content, and ambient temperatures during the fall/winter season. Research showed water content and ambient air temperatures were closely correlated with cane hardiness; closeness of a specific relationship varied with the time of the winter period evaluated; and the impact of the temperature response appeared to be mediated through its influence on tissue water content.
Acknowledgments: The authors gratefully acknowledge the assistance of B. Morse, W. R. Nail, and the Statistical Consulting Center of the College of Agriculture and Natural Resources Biometry Group at Michigan State University.
- Copyright 2002 by the American Society for Enology and Viticulture
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Vol 53 Issue 3
