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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Field Evaluation of Winegrape Rootstocks

Rootstock performance is, to some degree, dependent on site and/or…

Factors Affecting Sugar Utilization and Fermentation Rates

In this grant year, the investigation of the genetic and environmental…

Factors affecting bitterness, astringency and mouthfeel in wine

The effect of varying sourness on perceived astringency has been…

Evaluation of winegrape clones

The Zinfandel clonal trial was terminated with only minor differences…

Evaluation of Root System Conversion

Root system conversion methods were evaluated in three vineyards…

Effect of Rootstocks on grapevine mineral nutrition in the Central Coast

This study is comparing the differences in vine mineral nutrient…

Development of Methodologies for Rapid Detection

The efficiency of ELISA for detecting grapevine leafroll associated…

Cultural Control of Phylloxera in Root System Conversion Treatments

Root system conversion methods were evaluated at the White Hills…

Control of Eutypa Dieback of Grapes

The objective of our research is to find an effective control…

Clonal Testing of Wine grapes in the San Joaquin Valley

The San Joaquin Valley wine cultivar clonal evaluation study…

Characterize virulence and life cycles of new phylloxera strains

Summary: Characterize virulence and life cycles of new phylloxera…

Alternatives to Bentonite

Bentonite is the most effective, all-purpose reliable agent for…

A Cover Crop System for Vineyard Pest, Weed and Nutrition Management

This report describes a continuing on-farm project evaluating…

Control of Eutypa Dieback of Grapes

The objective of our research is to find an effective control…

Wine Grape Canopy Management Practices in the San Joaquin Valley

This work is a continuation of studies conducted in the San Joaquin…

The Potential Health Benefits of Phenolic Wine

Our progress is as follows: Establish the levels of resveratrol…

The Effect of Grapevine Latent Viruses on Non-AXR Rootstocks

1994 Final Report – Severe latent virus symptoms have been…

Spread and Control of Biotype B Phylloxera

Phylloxera variability: Four "non-A, non-B" strains from various…

Spiders in Vineyard Agro-Ecosystems

The overall goal of this research project is to continue to elucidate…

Optimal Management of Lepidopteran Pests of Grapes

The primary objectives of this research project are: 1) To evaluate…

Meristem tip culturing for the elimination of grapevine viruses

The most important technical problem which limits the importation…

Interactions between Commercial Wine Yeast and Malolactic Bacteria

Commercial yeast and lactic acid bacteria (LAB) starter cultures…

Influence of Windbreaks on the Vegetative and Reproductive Growth

A study was initiated in spring of 1991 to determine the effects…

Influence of Trellis-Training System and Rootstocks

The first year's data from four-year-old Cabernet Sauvignon vines…

Improvements and Replacements for Pre-Plant Soil Fumigation

High-pressure steam, hot air, hot water, and two years of solarization…