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ARS Home » Pacific West Area » Parlier, California » San Joaquin Valley Agricultural Sciences Center » Crop Diseases, Pests and Genetics Research » Research » Research Project #445789

Research Project: Breeding and Evaluation of Seedless Raisin Grapes with Superior Quality Including Types Resistant to Powdery Mildew

Location: Crop Diseases, Pests and Genetics Research

Project Number: 2034-21220-008-009-A
Project Type: Cooperative Agreement

Start Date: Jan 1, 2024
End Date: Aug 31, 2024

1. Employ marker assisted breeding to develop improved raisin grape varieties with disease resistance, early ripening, and commercial fruit quality. 2. Develop breeding populations and identify potential markers for naturally dry-on-vine (NDOV) and fruit shattering traits. 3. Provide samples of advanced raisin grape selections for sensory evaluations.

Data on fruit traits such as berry color, field berry weight, seed trace, disease resistance, and presence of the dry-on-the-vine trait will be obtained through field and laboratory examinations to identify accessions with superior quality. Seeds from selected plants will be germinated and seedlings will be used for development of markers using phenotyping and genotyping techniques. Samples of advanced raisin grape selections will be provided for sensory evaluations by the Raisin Administrative Committee