Research is an important function CRMB, and we've listed below the recent studies that have been conducted. You can view the complete report as a PDF file, by clicking on the title of the report you want to see. For nutrition research please click here.

(Grower research reports require Adobe Acrobat Reader.)
 

2007-2008 Call for Research Project Proposals

Principal Investigators: Erika Paggett Marketing Specialist, California Raisin Marketing Board

The CRMB will once again be working cooperatively with the following commodity groups and funding agencies: the California Table Grape Commission (CTGC), the American Vineyard Foundation (AVF), the California Rootstock Commission (CRC), the UC-DANR California Competitive Grant Program for Research in Viticulture and Enology (CCGPRVE), and the Viticulture
Consortium (VC) program for the Western Region. Representatives from all of the named groups have been working together to streamline the research proposal submittal and review process. Please note all groups are using a uniform proposal format.

Development of Improved Raisin Grapes for Mechanical Harvest Including Types Resistant to Powdery Mildew

David W. Ramming, Ronald Tarailo, Richard Emershad, Satomi Hiyama, Rodney Klassen

The study had three objectives; 1) develop new natural DOV raisin grape cultivars for mechanical harvest; 2) evaluate existing raisin selections in the breeding program to determine their commercial potential, and evaluate new natural DOV raisin selection for their commercial potential; 3) develop new raisin cultivars resistant to powdery mildew.

Evaluation of Nematode Resistant Rootstocks for Use with Early Ripening Raisin Varieties Grown for Dried on the Vine Raisin Production

Principal Investigator: Stephen J. Vasquez; Cooperators: L. Peter Christensen, Michael McKenry, Peter Cousins

The objectives of the study were two fold: 1) measure plant growth and yield parameters of 'DOVvine' raisin grapes on five potential nematode resistant rootstocks and compare them to own rooted vines using the south-side DOV trellis; and 2) measure plant growth and yield parameters of 'DOVvine' and 'Fiesta' raisin grape varieties on six potential nematode resistant rootstocks and compare them own rooted vines using the overhead DOV trellis.

Evaluation of Training Systems, Trellises, Row Direction, and Grape Cultivators for Dry-On-Vine (DOV) Raisin Production

Principal Investigator: Mathew Fibelibus; Cooperators: l. Peter Christensen, Bill Peacock, David Ramming, Steve Vasquez

The objectives for this research include: 1) evaluate vine training and trellis systems for potential and current dry-on-the-vine (DOV) cultivars; 2) determine the effects of row direction and trellis design on fruit drying rates, raisin yield and quality, vine vigor, and canopy microclimate; 3) evaluate new raisin selections for early maturity and DOV performance; 4) provide demonstration plots for grower and industry observation and evaluation

Evaluation of Canopy Separation and Defoliation Practices for Mechanized Raisin Harvest on Traditional Trellises

Principal Investigators: Mathew Fidelibus, Bill Peacock, Steve Vasquez; Cooperator: George Tatoian

This research focused on three vine training systems, for traditional trellis dry-on-the-vine (DOV) raisin production, and four leaf removal treatments to determine their effects on: 1) fruitfulness, yield, and raisin quality; 2) harvest pruning efficiency; 3) evaporative potential of the canopy.

Physiological Implications of Harvest Pruning Raisin Grapes

Principal Investigators: Matthew Fidelibus, David Smart

This study's goal is to determine the impact that harvest pruning Thompson Seedless grapevines may have on: 1) over-wintering sugar and starch levels in canes, trunk, and roots; 2) canopy size and leaf photosynthesis; 3) vine fruitfulness, fruit quality and yield; 4) root growth, and soil respiration as an indicator of root physiological activity.

Population Dynamics of the Vine Mealybug and its Natural Enemies in the Coachella and San Joaquin Valleys

Principal Investigator: Kent M. Danne; Co-Authors/Cooperators; Vaughn Walton, Marta Guillen, Raksha Malakar-Kuenen, Marianna Krugner, Carmean Gispert, Glenn Y. Yokota, Walter J. Bentley, Jocelyn G. Millar

The two objectives of this study are: 1) to study the biology and ecology of the vine mealybug: 2) to evaluate the impact of parasitoids on vine mealybug in the San Joaquin Valley.