Stated to be a "mid-season mandarin, good taste, small (could limit value, especially if smaller due to irradiation), seedy" by donor. Reintroduction of RRUT 280. (RRK, 10/2004) However, RRUT 280 proved to be the more robust propagations and therefore RRUT 313 was inactivated. (RRK, 02/2007)
Reintroduced as RRUT 373 after RRUT 280 perished in the Great Greenhouse Meltdown of 2007. (RRK, 09/2007)