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Workman navel orange

Citrus sinensis (L.) Osbeck


CRC 3320

PI 539572

VI 348



Photos by David Karp and Toni Siebert, 1/15/2010, CVC. Photo rights.


Source: Received as budwood from East Highlands Orange, Co. East Highlands, Calif., 1959.


Parentage/origins: Apparently derived from a bud sport.


Rootstocks of accession: Carrizo citrange, C-35 citrange


Season of ripeness at Riverside: December to January


Description from The Citrus Industry Vol. 1 (1967):

"Fruit similar to Washington, but rind thicker and rougher in texture; colors and matures considerably later. Holds on tree especially well with little loss in internal quality.
      Tree more vigorous, low and spreading; leaves larger than Washington; twig bark distinctively russet-brown.
      A budsport discovered about 1934 in the orchard of J. A. Workman at Riverside, California, this variety was named, patented (U.S. Plant Patent No. 347), and introduced by the Armstrong Nurseries of Ontario in 1942. Workman navel is recommended for home planting and has not achieved commercial importance."

Availability: Commercially available in California through the Citrus Clonal Protection Program.

USDA Germplasm Resources Information Network page for Workman navel orange


Citrograph, Dec. 1985, pp 31.






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