Givaudan Citrus Variety Collection at UCR

Welcome and thank you for visiting the UCR Citrus Variety Collection website! Here you will find information on more than 1,000 different varieties of citrus and citrus relatives residing in one of the leading citrus germplasm collections in the world.

Citrus Varieties

Today, with approximately 4,500 trees of nearly 1100 cultivars and species of citrus and related taxa, the CVC is one of the most extensive collections of citrus diversity in the world. This collection includes both commercial and historic citrus cultivars as well as other genera and species in the Aurantioideae subfamily of the Rutaceae.

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Latest News

June 08, 2022

You, too, can grow California’s oldest living orange variety

The 1000th tree okayed for growing by California’s Citrus Clonal Protection Program happens to be the oldest living orange variety in the state. The program, housed at UC Riverside, is the first of its kind in the world. It began...

Researchers find peptide that treats, prevents killer citrus disease

New research affirms a unique peptide found in an Australian plant can destroy the No. 1 killer of citrus trees worldwide and help prevent infection. Huanglongbing, HLB, or citrus greening has multiple names, but one ultimate result: bitter and worthless...

Delicious and disease-free: scientists attempting new citrus varieties

UC Riverside scientists are betting an ancient solution will solve citrus growers’ biggest problem by breeding new fruits with natural resistance to a deadly tree disease. The hybrid fruits will ideally share the best of their parents’ attributes: the tastiness...

Research Projects

The Givaudan Citrus Variety Collection is a resource for research and outreach activities as it has been since the collection was first established in 1910. Learn more about recent and current research projects utilizing the collection.

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Give to Citrus Variety Collection

Your support enables us to continue to preserve and expand upon over 100 years of history, research, and conservation. Learn more about how you can make a difference.

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