Literature References
Principal Viticulturist Mark Greenspan, Ph.D. is an active author for wine industry publications. He has contributed a monthly column to Wine Business Monthly continuously for over 6 years (over 75 articles and counting!). Recent articles include the following. Click on the links for the articles available online:


Additional online articles from Dr. Greenspan may be found by following this link and typing "Greenspan" in the search box: Additional Greenspan WBM Articles

Additional references: (Provided based on timeliness)
Using the Leaf Porometer in Grapes - a reference for using this valuable water status measuring device.
Shoot Tip Indicators for Early-Season Water Status Assessment