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2026 Student Flash Talks Viticulture
June 17, 2026 – 5:15 pm – 6:00 pm
VITICULTURE
Some student authors have been assigned oral, 3-minute Flash Talks. These “flash” presentations will provide additional opportunities for interaction between conference attendees and student researchers.
Moderator:
To be announced
Speakers:
| 5:15:00 pm – 5:18:15 pm | Impact of Exogenous Tetralone Abscisic Acid Applications on the Hormone and Metabolite Profile of Merlot Buds Rachel Ciccone, Brock University, Canada | |
| 5:18:15 pm – 5:21:30 pm | Leveraging Volatile Sensing for Rapid Detection of Smoke-Derived Signatures in Grapes and Wines Delaney Dyer, University of California, Davis | |
| 5:21:30 pm – 5:24:45 pm | High-Throughput Cold Hardiness Assessment of Muscadine Grape (Vitis rotundafolia Michx) Cane and Reproductive Tissue Jenna Goddard, University of Kentucky, Lexington | |
| 5:24:45 pm – 5:28:00 pm | High-Throughput Cold Hardiness Assessment of Muscadine Grape (Vitis rotundafolia Michx) Cane and Reproductive Tissue Jenna Goddard, University of Kentucky, Lexington | |
| 5:28:00 pm – 5:31:15 pm | Preliminary Insights Assessing the Effects of Controlled Adult Spotted Lanternfly Infestations on Cabernet franc Daniela Menendez, Virginia Polytechnic Institute and State University, Winchester | |
| 5:31:15 pm – 5:34:30 pm | Assessing Carbon Storage Potential of Regeneratively Managed Vineyard Soils Gwendolyn Richards, California Polytechnic State University, San Luis Obispo | |
| 5:34:30 pm – 5:37:45 pm | Evaluating Foliar Applied Functional Compounds to Mitigate Heat and Water Stress in Cabernet Sauvignon Grapevines Guadalupe Partida, California State University, Fresno | |
Guadalupe Partida | Luca Pallotti | Vincenzo Cianciola | Alessandro De Rosa | Marco Saldivar |
Xavier Rideout | William Whalen | Luca Brillante*
Strategies to Mitigate Heat Stress
and Delay Berry Ripening in Grape Production Amid Climate Change
Guadalupe Partida, Luca Pallotti, Vincenzo Cianciola, Alessandro De Rosa, Marco Saldivar, Xavier Rideout, William Whalen and Luca Brillante*
*Department of Viticulture and Enology, California State University Fresno, 2360 E Barstow Ave, Fresno, CA, 93740, lucabrillante@csufresno.edu
Global warming increasingly threatens grape production in regions like California’s Central Valley. Late-season practices aimed at reducing photosynthetic efficiency may enhance vine resilience and delay ripening. Over three years, this study compared an untreated control (C) with applications of pinolene (P) and diatomaceous earth (D), as well as a novel shoot twisting (T) treatment designed to mimic the benefits of topping while preventing excessive cluster exposure. Measurements of leaf area, light interception, midday stem water potential, and gas exchange were collected throughout each growing season. Berry ripening progression and grape production at harvest were also assessed. Shoot twisting led to desiccation of the upper portion of the shoot, reducing leaf area while maintaining low irradiance in the fruiting zone. Stem water potential data indicated that D, and particularly T, alleviated stress conditions, while P negatively affected vine water status. D significantly influenced gas exchange, increasing transpiration and stomatal conductance, resulting in a trend toward improved water use efficiency. Additionally, D and T treatments promoted higher berry weights in the first half of the season, likely due to improved water status, while P had the opposite effect. All treatments altered berry ripening dynamics, leading to higher titratable acidity and lower must pH without reducing yield. These findings demonstrate that modifying traditional, easily mechanizable practices—such as topping—and incorporating new products like diatomaceous earth are effective strategies for mitigating summer heat stress and delaying ripening in hot, arid regions.
Funding Support: Bronco Wine Co. Chair in Viticulture
