Received as budwood from Jose Chaparro, USDA-ARS Whitmore Foundation Farm, Leesburg, Florida, 2004.
A reported hybrid of tangelo (C. x tangelo X C. paradisi) and to be sibling of USDA 1-77-19. Produced by irradiation of USDA 75-8 ('Pearl' tangelo X grapefruit) in 1980.
Rootstocks of accession
Season of ripeness at Riverside
Notes and observations
RRK, 2004: "Stated to be a "seedless tangelolo" by donor and to be "sibling of USDA 77-19, fewer seeds than 77-19, flavor not as good as 77-19, larger fruit than 77-19".
Very weak tree; reintroduced as RRUT 286 but retained as RRUT 286 did not establish and RRUT 226 became more robust.
Reintroduced again as RRUT 317. However, RRUT 317 also became weak and RRUT 226 was retained as the most robust introduction."
RRK 8/2007 "Although the source trees of this accession perished in the Great Greenhouse Meltdown of 2007, thermotherapied propagations (and thus the genotype) exist at NCGRCD."
Not commercially available in California.