2022 Symposium


Climate Change Symposium: Part 1 Viticulture

This symposium will provide a comprehensive review of how climate change impacts the grape and wine industry. Topics will include three primary areas of interest, including a review of the changing conditions, the physiology behind plant response to environmental stresses of climate change, and the impacts of breeding programs designed to address production challenges that come with climate change. Presentations will address the concerns for viticulture in both cool, warm, dry and humid areas of the world. Scientists from across the US and internationally will provide a balance of theoretical and applied research. Please join us for a one-day symposium on viticulture in 2022 with a follow-up symposium on enology impacts in 2023.

Organized by ASEV Technical Program Committee


Program is subject to change.
8:00 am – 8:10 am Welcome and introduction to the Symposium 
Tom Collins, Washington State University, Tri-Cities
Jim Harbertson, Washington State University, Tri-Cities
8:10 am – 8:45 am Introduction to Climate Change    
Hans Schultz, Geisenheim University, Germany
Speaker Sponsored by E. & J. Gallo Winery

Changing Conditions – Physiology and Cultural Practices

8:45 am – 9:30 am Effects of Climate Change Cool/Humid Areas
Jason Londo, Cornell University, New York
9:30 am – 10:15 am Effects of Climate Change Warm/Dry Areas
Markus Keller, Washington State University, Prosser 
10:15 am – 10:30 am Break
Drilling in Deeper – ​Research in Stressors of Climate Change
10:30 am – 11:15 am Impacts of Elevated Carbon Dioxide on Grapevine Physiology and Development
Manfred Stoll, Geisenheim University, Germany
Yvette Wohlfahrt, Geisenheim University, Germany
11:15 am – Noon Impacts of Climate Change Stressors on Fruit Development
Paul Petrie, South Australian Research and Development Institute
Speaker Sponsored by Treasury Wine Estates
Noon – 1:30 pm Lunch
Breeding for Climate Change – Reducing Disease and Pesticide Use
1:30 pm – 2:15 pm The Dangers of Limited Genetic Diversity in Grapevines
Elizabeth Wolkovich, University of British Columbia, Canada
2:15 pm – 3:00 pm Adapting with New Varieties for Reduced Pesticide Use
Oliver Trapp, Julius Kühn-Institut Federal Research Center for Cultivated Plants, Germany
3:00 pm – 3:20 pm Break
Oral Research Reports
Moderator: Lise Asimont, Foley Family of Wines, California
3:20 pm – 3:40 pm Sunburn Damage Assessment Under Different Levels of Sun Exposure and Temperature in Sangiovese and Pignoletto Berries
Gianluca Allegro, University of Bologna, Italy
3:40 pm – 4:00 pm Heatwave Frequency Affects Gewürztraminer Leaf Physiology and Grape Cuticular Wax Profile
Josh VanderWeide, University of British Columbia, Canada
4:00 pm – 4:20 pm VitisGen2: Incorporating Marker Assisted Selection to Produce More Disease-Resistant and Climate-resilient Cultivars
Timothy Martinson, Cornell University, Geneva
4:20 pm – 4:40 pm Adapting Stomatal Traits to the Climate Projected for Premium and High-production California Wine Regions
Megan Bartlett, University of California, Davis
4:40 pm – 5:00 pm Fruit Zone Cooling in Wine Grapes During Heatwaves
Ben-Min Chang, Washington State University, Prosser
Wrap up
5:00 pm – 5:15 pm Jim Harbertson, Washington State University, Tri-Cities

 Poster Research Reports

P13 Late-season Source Limitation Practices to Delay Ripening and Improve Color of Cabernet-Sauvignon Grapes and Wine
Guadalupe Partida, California State University Fresno
P14 Mitigating Heat Wave Damage to ‘Cabernet Sauvignon’ Wine Grape with Partial Shading under Two Irrigation Amounts
Kaan Kurtural, University of California, Davis
P15 Optimal Ranges and Thresholds of Grape Berry Solar Radiation for Flavonoid Biosynthesis in Warm Climates
Kaan Kurtural, University of California, Davis