2013 Annual Report
1a.Objectives (from AD-416):
Deployment of nematode resistant carrots to U.S. growers and seed industry.
1b.Approach (from AD-416):
We have discovered multiple genetic sources of nematode resistance in carrot germplasm. In this project we will confirm the strength of the resistance, intercross best resistance, produce ample seed for extensive field testing, and release best resistance to the public, especially growers and seed companies. We will also evaluate horticultural quality including field performance traits (color, shape, uniformity) and consumer quality (flavor and nutritional value), hold field days for the carrot production community, and confirm genetic models of resistance in mapping populations.
This is the final report, project terminated 08/31/2012. Field testing at three sites in major California growing regions (Kern County, two sites and Imperial County, one site) provided performance data as well as plants for evaluation of flavor and nutritional value. Field days expanded awareness of project progress with growers and shippers. Approximately 45 to 60 carrot growers and seed company representatives attended each field day. Carrots selected for disease resistance, appearance, and eating quality were shipped to Wisconsin for evaluation of nutritional quality and molecular genetic markers. This research relates to objectives 1 and 2 by providing carrot stocks to evaluate yield, quality, and disease resistance, as well as trait genetics.