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Koethen sweet orange

Citrus sinensis (L.) Osbeck RUTACEAE


CRC 1106

PI 539588



Photos by David Karp and Toni Siebert, CVC. Photo rights.


Source: Received as budwood from E.R. Koethen grove, Brockton Ave., Riverside, 1917.


Parentage/origins: Seedling tree selected by Dr. Frost (1A-4-24) as especially vigorous from the orchard of Mr. Koethen. Orchard was 35 years old.  

Rootstocks of accession: Carrizo citrange, C-35 citrange 

Season of ripeness at Riverside: January to March


Notes and observations:

These fruits are rather seedy and possibly of interest from rootstock standpoint. Averaged 13-19 seeds. 2/08/1988, EMN: A typical mid-season, seedy sweet orange.


Availability: Not commercially available in California.

USDA Germplasm Resources Information Network page for Koethen sweet orange



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