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The National Clonal Germplasm Repository (NCGR) at Davis is one of thirty-two federally funded repositories in the National Plant Germplasm System(NPGS) that is dedicated to the collection and preservation of plant germplasm from around the world.  

Most of the plants in the collections are maintained through vegetative propagation (by rooting cuttings or budding onto rootstocks) to preserve their unique traits.   The plants in the collections are grown in greenhouses, screen houses and as field plantings.   These genetic resources are made available to public and private plant researchers and growers worldwide.    

Funding for the Davis Repository is provided by the United States Department of Agriculture(USDA) through the Agricultural Research Service(ARS), in cooperation with the Universityof California, Davis (UCD).   The Davis Repository was initially funded by USDA-ARS through UCD but was fully federalized by 1989.   The DavisRepository maintains a close working relationship with the UCD Departments of Plant Sciencesand of Viticulture and Enology.   Many students from University departments are employed with the goal of providing them with training in laboratory and horticultural practices. 

Mission:  To collect, preserve, evaluate, and distribute the genetic resources of the crops assigned to us as part of the US National Genetic Resources Program. These resources are preserved to ensure that crop diversity in these species will be available for future generations and to support research efforts in variety development and other areas of plant research.


John E. Preece

Supervisory Research Leader/Horticulturist

Agricultural Research Service

National Clonal Germplasm Repository

One Shields Avenue, UCD

Davis, CA 95616

Phone: 530-752-7009

Fax: 530-752-5974


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