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United States Department of Agriculture

Agricultural Research Service

Obtaining Citrus & Date Germplasm
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Information For Germplasm Requestors

Qualified individuals may request germplasm from the National Clonal Germplasm Repository for Citrus & Dates. “Qualified individuals” refers to scientists, breeders, certification programs, etc. Germplasm may be distributed to private individuals at the discretion of the Curator. At this time, germplasm distributions are made gratis to for use in research or certification programs, with the Repository bearing the costs of the phytosanitary documents and shipping. Requestors may contribute shipping costs via their own accounts if they so desire. Private requestors may be required or requested to pay for shipping.


The germplasm requested is potentially available as budwood, seed, pollen, other plant parts, offshoots (date palms only), or nucleic acid. In most circumstances, we only distribute citrus budwood or other vegetative material from pathogen-tested sources. Under specific circumstances, we will distribute non-tested materials. Please contact the curator regarding these types of requests.


Distribution of germplasm may be subject to restriction by the requestor’s country or state government. An import permit may be necessary. Although we are able to request this information through USDA-APHIS, it is highly recommended that the requestor contact the appropriate phytosanitary authorities prior to requesting germplasm in order to determine what documents or events are necessary for importation of the germplasm. Note that our information sources do not include information on customs requirements. Information in this area is useful in ensuring that you receive your germplasm in a timely manner, so please determine any special customs requirements ahead of time.


In order to process germplasm requests, we need the following information:





Shipping address (if different; see below)




Intended Use of Material

Port of Entry


Germplasm is generally shipped by DHL due to that carrier’s ability to handle international shipments of plant materials. Under specific circumstances, a different carrier may be utilized at the requestor’s request. Commercial shippers such as DHL require a physical address because they cannot deliver to a post office box. Therefore, this type of address is necessary for us to ship the material.


All policies are subject to change or revision.


A PDF file with this information may be obtained here.

Requesting Germplasm

Citrus and date germplasm may be obtained in several different ways.

1. Email the Curator.

2. Via the information given on the GRIN Request Germplasmpage.

3. Via the GRIN Germplasm Or Information Requestpage.

4. Send an email to the National Germplasm Resources Laboratory.

The first method (emailing the Curator directly) is the best method for resolving questions as to accession availability, suitability, etc. In any case, processing of germplasm requests will be expedited by referring to the accession number rather than just a varietal name. For more on obtaining information on accessions and their identifiers, please refer to our Obtaining Information About Germplasm Accessions page.

Information About Germplasm Accessions

The National Plant Germplasm System (NPGS) maintains an internationally accessible database on all accessions maintained at all NPGS sites. This database is referred to as the Germplasm Resources Information Network (GRIN).

The GRIN database can be queried at the GRIN Accession Area Queries page.

Users not familiar with the GRIN system are advised to use the two queries at the top of the page. The Text Search Query can be used to search on any term that may occur in a database record. The Simple Query can be used to look up any specific identifier that may occur in a database record. Although these queries are the simplest to use for novice GRIN users, the queries lower in the page are more powerful in the hands of experienced users.

Additional information on some citrus accessions is available from the University of California, Riverside Citrus Variety Collection and Citrus Clonal Protection Program websites.

Last Modified: 6/19/2009