Research Results
Click a title below to view a research summary or narrow your search by entering a specific search term or topic. You can find research summaries keyword, funding year, primary investigator or category using the search boxes at right. Project summaries are available for every year since 1991.
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Tannin Structure-Activity Relation to Red Wine Astringency
The objectives of this proposal have been to do the following: In…
Red Wine Tannin Interaction with Polysaccharides
The objectives of this proposal are to do the following: I.…
Interpreting a Multi-Virus Survey and Designing and Delivering Virus Sampling Protocol for Industry-Wide Benefits
A. Analyze incidence of multiple virus diseases in a 2014 survey…
Grapevine Leafroll Disease: a Detailed, Broad-scope Study of Host and Pathogen Effects
Grapevine leafroll disease causes non-uniform maturation of fruit…
Mitigation of Vineyard Greenhouse Gas Production Using Organic Floor Management Approaches
This project represents an overarching effort to develop accurate…
Discerning Mechanisms of GRBaV Virus Disease (Red Blotch) Using Leaf Nutrient Transport and Photosynthesis Analyses
In 2015, considerable time was invested in establishing a relationship…
Development of Next Generation Rootstocks for California Vineyards
2015 Screening of crosses for salt resistance – chloride exclusion…
Improvement of Wine Quality: Tannin and Polymeric Pigment Chemistry
Seven vintages of UC Davis Oakville Cabernet Sauvignon spanning…
Managing Protection of Varietal Aromas From Wine Oxidation
In order to investigate the reactions of quinones with unknown…
Assessments of Difficult to Ferment Juices
The goal of this project is to uncover the causes of chronically…
Targeted Genome Editing for Trait Improvement in Vitis vinifera
Targeted genome editing to modify gene expression has rapidly…
Development and Implementation of Management Strategies for Grapevine Leafroll Disease and Mealybug Vectors
This project continues to inform and support the adoption of…
Egg Parasitism of the Virginia Creeper (Erythroneura ziczac), A Newly Invasive Leafhopper Pest in California
Organic grape growers in Mendocino and Lake County have been…
Evaluating the Potential of Insect Vectors to Transmit Grapevine Red Blotch associated Virus (GRBaV)
At this time there is no accurate information on the epidemiology…
Determine The Impact of Cluster Thinning and Cluster Zone Leaf Removal on the Hormone Content of Pinot Noir Grape Berry
During the past six months we have succeeded to reproduce the…
Evaluation of New Winegrape Varieties for the San Joaquin Valley
Fifty six different red and white wine grape selections originating…
Evaluation of Grapevine Rootstock Selections
A team of academic, government, and industry partners developed…
Biology and Spread of Grapevine Red Blotch-Associated Virus
Grapevine red blotch-associated virus (GRBaV) is the causal agent…
Tannin Structure-Activity Relation to Red Wine Astringency
Optimizing wine quality with regard to mouth feel is a quest…
Comparison of Crop Load Management Systems and Differential Regulated Deficit Irrigation (RDI) on Vegetative Compensation, Whole-Canopy Photosynthesis, and Vine Performance in Procumbent Vitis vinifera L. in a Warm Climate
A traditionally managed head-trained, cane-pruned Merlot/Freedom…
Investigation of the Impact of Grapevine Red Blotch-associated Virus on Grape and Wine Composition and Quality
Grapevine red blotch-associated virus (GRBaV) is the latest virus…
Interactive Effects of Mechanical Leaf Removal Timing and Regulated Deficit Irrigation on Biosynthesis of Methoxypyrazines and Phenolics on a Procumbent Grapevine (Vitis vinifera cv. Merlot) in the San Joaquin Valley of California
An experiment was conducted in the San Joaquin Valley of California…
Interaction of Rootstock, Mechanical Crop Load Management Systems and Differential Regulated Deficit Irrigation on Mineral Nutrient Requirements of Wine Grapes in Southern San Joaquin Valley
Grapevine leafroll disease causes non-uniform maturation of fruit…
Formation of Volatile Sulfur Compounds in Pinot Noir Post-Fermentation
Development of volatile sulfur compounds (VSCs) post-fermentation…
Formation of Volatile Sulfur Compounds in Pinot Noir Post-Fermentation - Part 2: Lees Level and Contact Time on Volatile Sulfur Compounds in Wine
The effect of lees contact time during wine barrel aging on volatile…
Grapevine Leafroll Disease: A Detailed, Broad-Scope Study of Host and Pathogen Effects
Grapevine leafroll disease causes non-uniform maturation of fruit…
Development and Application of Next Generation Sequencing to Facilitate the Release of New Grapevine Accessions in Quarantine and Certification Programs
This project is involved with the characterization of the technical…
Defining Crop Load Metrics for Quality Pinot Noir Production in Oregon
A three year study began in 2013 to determine the impact of varying…
Impact of Vine Vigor, Nitrogen, and Carbohydrate Status on Fruitfulness of Pinot Noir
The first year of a two-year research project was completed in…
Mitigation of Vineyard Greenhouse Gas Production Using Organic Floor Management
Since April 2013, this study has closely monitored the effects…
Chiral Terpenes - Quantitation, Threshold Determination and Sensory Impact on Aromatic White Wines
The specific accomplishment of the last year for this project…
Improvement of Wine Quality: Tannin and Polymeric Pigment Chemistry
The task we are undertaking is fundamental. There is currently…
Breeding Rootstocks Resistant to Aggressive Root-Knot Nematodes
The USDA Agricultural Research Service (USDA-ARS) grape rootstock…
Extension and Outreach Through UC Davis Viticulture and Enology On-The-Road Events
At the end of the 2014-2015 funding cycle we will have produced…
Development of Next Generation Rootstocks for California Vineyards
2014 Pollinations – The 2014 crosses are presented in Table…
Integrating Systems Biology with Marker Assisted Selection to Guide the Stacking of Powdery Mildew Resistance Genes
The long-term goal of this project is to develop grape varieties…
