The Collaboration for Plant Pathogen Strain Identification (CPPSI) is a science-based initiative supported by the seed industry to standardize the identification of plant pathogen strains or races and the determination of variety resistance.
Consistent identification of plant pathogen strains and races is a recognized need for the seed industry, regulatory agencies, and academia. Vegetable seed companies make claims of resistance to the level of plant pathogen strains and races. Discrepancies in the naming of pathogens can undermine grower confidence in disease resistance claims affect the accuracy of plant disease diagnostics.
CPPSI partners with global and local associations and organizations to provide the vegetable seed industry with reference materials (seeds, pathogen strains, and white papers) that identify plant pathogen races or strains and determine host resistance levels.
Access to CPPSI reference materials can be found in the white papers, CPPSI services, and at USDA-GRIN.
CPPSI is grateful for the continued support of our
sponsors and partners
Bayer Crop Science • Enza Zaden • HM.CLAUSE
Rijk Zwaan • Sakata Seed America • Syngenta Seeds • East-West Seed
BASF • US Department of Agriculture