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

The objective of this project is to evaluate rootstocks for winegrape…

Factors Affecting Sugar Utilization and Fermentation

The quantity as well as quality of available nitrogen during…

Evaluation of Winegrape Clones

Thirteen clones or selections of Pinot noir were harvested for…

Ethyl Carbamate Formation by Malolactic Bacteria

Arginine is one of the major amino acids found in grapes and…

Cultural Control of Phylloxera in Existing Root Systems

Root system conversion methods were evaluated in small research…

Control of Eutypa Dieback of Grapes

The ultimate objective of this research is to develop practical…

Clonal Testing of Winegrapes in the San Joaquin Valley

An on-going San Joaquin Valley wine cultivar clonal evaluation…

Alternatives to Bentonite

Use of bentonite as a protein stabilizing agent for wine generates…

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

Large scale replicated trials were initiated in the fall of 1991…

Alternatives to Bentonite

There are many causes of hazes in wine and two predictive tests:…

Biotechnology for Grape Improvement

The goal of this research is to produce economically significant…

Capture and Utilization of Fermentation Emission

SUMMARY AND RESEARCH ACCOMPLISHMENTS: Preliminary results indicate…

Clonal Testing of Winegrapes in the San Joaquin Valley

Executive Summary: An on-going San Joaquin Valley wine cultivar…

Control of Eutypa Dieback

Objectives: The overall objective of this research is to develop…

Cultural Control of Phomopsis Cane and Leaf Spot

The overall goal of this project is to evaluate the potential…

Cultural Control of Phylloxera in Existing Vineyards

Root system conversion methods were evaluated at the White Hills…

Epidemiology and Control of Grapevine Powdery Mildew in California

Powdery mildew can overwinter in cleistothecia lodged in bark.…

Evaluation of Winegrape Clones

Five clonal trials were harvested in 1991, two Chardonnay, two…

Genetics of Fungicide Resistance to Bayleton, Rally, and Rubigan

Objective: To determine the genetics of fungicide resistance…

Grapevine fanleaf virus: detection and distribution

The first three objectives of this study are dependent upon the…

Impact of Fungicide Use on Wine Quality

The purpose of this continuing research project was to investigate…

Improving nitrogen fertilizer efficiency in winegrapes

This was a four-year study on the effects of N fertilizer timing…

Interaction of commercial wine yeasts and malolacric bacteria

Twenty-nine strains of malolacric bacteria and forty-three strains…

Meristem tip culturing for the elimination grapevine viruses

Young grapevines have been successfully propagated from virus…

New technology for determining vine water status and controlling vineyard

We confirmed that ultrasonic acoustic emissions occur in field-grown…