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United States Department of Agriculture

Agricultural Research Service

Related Topics

Research Project: Acquisition and Evaluation of Citrus and Citrus Relatives in the Citrus Variety Collection

Location: National Clonal Germplasm Repository for Citrus & Dates

2013 Annual Report


1a.Objectives (from AD-416):
Maintain high quality of and upgrade the 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 potential accessions and access, update databases appropriately, and maintain collections in good order for efficient utilization.


3.Progress Report:

This project is related to objective 1 and 2 (identification of priority genetic resources of citrus and characterization of the genotypes of citrus, respectively) of the parent project. The smuggling of citrus relatives into California poses the risk of also introducing huanglongbing and/or the Asian citrus psyllid, thereby putting the California citrus industry at risk. In cooperation with the Citrus Clonal Protection Program and the National Clonal Germplasm Repository for Citrus and Dates (NCGRCD) and with support of the Citrus Research Board, citrus relatives, specifically curry leaf and bael fruit, were identified which are in demand in California and frequently smuggled into the state because of the use for food or other purposes. In cooperation with state, federal, and citrus industry phytosanitary authorities, protocols have been developed to allow for safe establishment of source plants for germplasm production in California Department of Food and Agriculture-licensed citrus nurseries in California. Source trees of curry leaf and bael fruit were tested for seed-transmissible diseases, and these relatives now may be safely distributed using these seed sources.


Last Modified: 12/21/2014
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