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United States Department of Agriculture

Agricultural Research Service


Location: National Clonal Germplasm Repository for Citrus

2013 Annual Report

1a. Objectives (from AD-416):
Maintain high quality of and upgrade citrus variety collection and citrus relative collection.

1b. Approach (from AD-416):
Acquire new potential accessions for the citrus variety collection and citrus relative collection and NCGRCD protected screenhouse collection, evaluate accessions and potential access, update databases appropriately, and maintain collections in good order for efficient utilization. FORMERLY 5310-21000-008-08S (8/08).

3. Progress Report:
This is the final report for this project which is related to obejective 1 of the inhouse parent project, "Strategically expand and improve collections of priority genetic resources of citrus and date palm and associated informaton". A pictoral guid to citrus relatives has been prepared and published in a flip page format so that it is readily usable and accessible by regulatory personnel. In cooperation with the National Center for Genetic Resources Preservation (NCGRCD), accessions from the Citrus Variety Collection which were not backed up in the Protected Collection were propagated and are being maintained in a secure greenhouse to prevent exposure to huanglongbing (HLB) and the psyllid vectors of HLB. Information of accessions and photographs have been added to the Citrus Variety Collection website, and the NCGRCD website has links to connect this information with the information in National Genetic Resources Progrm (GRIN). In a joint project, a diverse collection of germplasm accessions of citron were evaluated for morphological and genetic characterized. While citrons are generally considered to be similar in traits, considerable diversity was found in the study. In cooperation with the University of California Riverside (UCR) Agricultural Operations and the NCGRCD, a UCR citrus field day was held for citrus growers, citrus industry representatives as well as the general public.

4. Accomplishments

Last Modified: 05/28/2017
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