Office of Research, UC Riverside
Office of Technology Commercialization

Citrus Licensing Program

Photo Credit - The Press Enterprise/SCNG

Citrus Related Services at UCR

Citrus Clonal Protection Program (CCPP)

The California Citrus Clonal Protection Program (CCPP) is a part of the University of California, Riverside, Department of Plant Pathology, College of Natural and Agricultural Sciences (CNAS). The CCPP is a cooperative program with the California Department of Food and Agriculture (CDFA), the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA-APHIS) and the citrus growers of the state of California represented by the Citrus Research Board (CRB).

The CCPP provides a safe mechanism for the introduction into California of citrus varieties from any citrus-growing area of the world for research, variety improvement, or for use by citrus enthusiasts and the commercial industry of the state. This mechanism includes, disease diagnosis and pathogen elimination followed by maintenance and distribution of true-to-type, primary citrus propagative material of the citrus varieties

The CCPP distributes citrus budwood in accordance to the California Department of Food and Agriculture regulations to anyone interested to propagate citrus trees for commercial or personal use. The CCPP does not distribute citrus seeds, rootstocks, or trees.

For more information and how to contact CCPP -

Citrus Variety Collection (CVC)

The Citrus Variety Collection and Citrus Experiment Station were established in Riverside, California in the early 1900s to support the needs of the developing citrus industry in Southern California. The Citrus Experiment Station became the foundation of the University of California Riverside campus and has remained at the forefront of agricultural and citrus research.

The purposes of the Citrus Variety Collection are threefold: 1) to conserve and evaluate trueness-to-type of citrus and citrus relatives; 2) to provide a resource of citrus genetic diversity for research; and 3) to extend knowledge about citrus diversity.

For more information and how to contact CVC -