Som Kaeo mandarin

Citrus reticulata Blanco

CRC 3852
PI 539526


Received as seed from Thailand, via W. Reuther, 1970.


Parents unknown.

Rootstocks of accession

Carrizo citrange, C-35 citrange

Season of ripeness at Riverside

Unknown at this time.

Notes and observations

EMN, 3/1987: Medium-large fruit with light crop. Attractive fruit, peels & sections readily but: most fruit is on ground and it is still too sour to eat.

EMN, 6/1989: Memo of 10/15/70 (Reuther to Nauer): Mandarin variety called Som Kaeo (Crystal citrus) collected from Hua Hin market, Thailand 9/1970. Trees do better on poorly drained paddy soils bedded up for citrus than any variety observed. This variety is now rather rare, but mentioned by early French writer (de la Lovbere, 1693) on Siam. De la Lovbere spelled it Soum Keou to give french transliteration. Note: We originally received 2 lots of Som Kaeo seed from 2 different locations in Thailand. Som Kaeo I trees died- probably could not put up with Riverside climate- & we lost this budline. The current budline is sometimes referred to as Som Kaeo II.


Not commercially available in California.


USDA Germplasm Resources Information Network page for Som Kaeo mandarin


Photos by David Karp and Toni Siebert, CVC.
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