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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Formation of Volatile Sulfur Compounds in Pinot Noir Post-Fermentation

Development of volatile sulfur compounds (VSCs) post-fermentation…

Defining Crop Load Metrics for Quality Pinot Noir Production in Oregon

A three year study began in 2013 to determine the impact of varying…

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…

Development of Next Generation Rootstocks for California Vineyards

2014 Pollinations – The 2014 crosses are presented in Table…

Extended Maceration

In this study we looked at the effect of extended maceration…

Breeding Rootstocks Resistant to Aggressive Root-Knot Nematodes

Summary: The USDA Agricultural Research Service (USDA-ARS) grape…

Mealybug transmission of Grapevine Leafroll-Associated Virus 3

The overarching goal of this research is to obtain information…

Assessments of Difficult to Ferment Juices

The goal of this project is to uncover the causes of chronically…

Understanding Alcohol Tolerance in Wine Yeasts

Understanding alcohol tolerance in wine yeasts is important in…

Evaluation of new Winegrape Varieties for the San Joaquin Valley

A wine grape variety trial was established in 2008 at the Kearney…

Biology and Spread of Grapevine Red Blotch-Associated Virus

Grapevine red blotch-associated virus (GRBaV) is associated with…

Bio-Economic Analysis of Grape Leafroll Virus Epidemics in California

The work in this research project concerns three things. First,…

Defining Crop Load Metrics for Quality Pinot Noir Production in Oregon

A three year study began in 2013 to determine the impact of varying…

Development of Next Generation Rootstocks for California Vineyards

The 2013 crosses focused on developing rootstocks with deeper…