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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An Assessment of Wind Machine Performance for Vineyard Frost Protection

This 2012 project evaluated temperature changes resulting from…

Update of the Paso Robles Soil Salinity Survey

This 2012 project completed the fourth repeat sampling of soils…

Bio-economic Analysis of Grape Leafroll Virus Epidemics in California

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

Grapevine Leafroll Disease, A General Detail Study and Evaluation

Grapevine leafroll disease causes poor color development in red…

Oxidation of Wine: Control for Quality

This report presents, first, the electrophilic nature of Q4MeC…

Breeding Rootstocks Resistant to Aggressive Root-Knot Nematodes

The USDA Agricultural Research Service grape rootstock improvement…

Evaluation of New Winegrape Varieties for the San Joaquin Valley

A wine grape variety trial was established at the Kearney Research…

Development of Next Generation Rootstocks for California Vineyards

The 2012 crosses focused on drought and salt resistance from…

The Fate of Anthocyanins Under Warm Growing Conditions

In the proposal for the 2012, we outlined three objectives: 1.…

Improvement of Wine Quality: Tannin and Polymeric Pigment Chemistry

Accomplished Objectives (06/2012-01/2013) Upon receipt of…

Developing and Evaluating Social Networking Tools for Viticulture

We sought to 1) determine how familiar our academic and industry…

Metabolic Profiling of Grape and Wine Aromas

Most aroma compounds exist in grapes as glycosidically bound…

Search for, and Development of, Nematode Resistance in Grape Rootstocks

This year we have focused our attention on obtaining a broader…

Esca and Petri Disease: Identifying Sources of Vineyard Infections

We examined the genetic relatedness of isolates of Phaeomoniella…

Developing and Evaluating Social Networking Tools for Viticulture

We sought to 1) determine how familiar our academic and industry…

Breeding Rootstocks Resistant to Aggressive Root-knot Nematodes

The USDA Agricultural Research Service grape rootstock improvement…

Search for, and Development of, Nematode Resistance in Grape Rootstocks

This year we have focused our attention on obtaining a broader…

Grapevine Canker Diseases in California

The screening for potential fungal and bacterial epiphytes and…

Bio-economic Analysis of Grape Leafroll Virus Epidemics in California

Objectives of Proposed Research: 1. Analyze historical data maps…

Grapevine Leafroll Disease, a General Detail Study and Evaluation

Grapevine leafroll disease causes poor color development in red…