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Swingle trifoliate

Poncirus trifoliata (L.) Raf. RUTACEAE


CRC 4138


Photos by David Karp and Toni Siebert, CVC.10/30/2013.  Photo rights.


Source: Received as seed from USDA Citrus Repository, Riverside, Ca, 2005.


Parentage/origins: Parents unknown.


Rootstocks of accession: Carrizo citrange, C-35 citrange


Season of ripeness at Riverside: October to November


Notes and observations:

Nucellar seedling of RSD 1998035. Of 100 seeds of RSD 199034 received, 37 germinated. A nucellar seedling (RSD1998035SG008 = RRUT 137) was selected with ISSR markers and retained as RRUT 137 (later renumbered as RCRC 4138 for inclusion in the Citrus Variety Collection) (Krueger and Roose, 2003). RSD 1998035 was then inactivated. This accession is in the small flower group of Fang et al (1997). (RR Krueger, 09/18/2010)


Availability: Not commercially available in California.


USDA Germplasm Resources Information Network page for Swingle trifoliate








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