[(C. paradisi `Duncan' × C. trifoliata `Gotha Road') × C. sinensis `Succory'][2] .
sweet with trace poncirus bitterness
supposedly hardy to 10°F, young trees injured in low 20s [1]
Gotha Road is a vigorous selection of P. trifoliata that is moderately susceptible to Phytophora [3]
Succory is an acidless orange popular in Egypt [4]
Developed specifically for virus and cold resistance, US119 originated from a cross of T9R80, an F1 selection of Citrus paradisi cv. Duncan X Poncirus trifoliata, and C. sinensis cv. Succory. Trees are moderately vigorous with dense, dark-green foliage of predominantly unifoliate leaves which are highly resistant to freeze injury. Fruits are sweet orange-like, globose, 70 mm in diameter, weigh 165 g and have a 3 mm thick rind. Flesh is fine textured and firm. At maturity in late November juice samples have soluble solids concentrations ranging from 12.0 to 17.2% and titratable acidity from 0.63 to 0.81%. Fruit flavour is similar to sweet orange but does not match it in overall quality. US119 has survived estimated winter temperatures of -12.2°C. It is highly resistant to citrus tristeza closterovirus and can transmit resistance to progeny in crosses with both resistant and susceptible clones.[5]
Fruit have tendency to split when near ripe and excess rainfall.
Banana Mango taste? [6]
At the November 2017 Southeastern Citrus Expo there was a brief discussion about the taste of US119. US119 has a unique taste, and a well known collector of hardy citrus said it was his favorite. It has complex flavors, including mango.
Does it fruit well? I saw big trees, always without fruits...
ReplyDeleteMine doesn't fruit well, and the fruit split.
ReplyDeletewhere can you buy them>?
ReplyDeleteIn a taste comparison of US 119 and various satsumas a couple weeks ago, US 119 had a lot more flavor. There is still an aftertaste which many find unpleasant. A brief search on the internet shows it for sale in the EU, but I didn't find it in the US. Budwood is probably available from University of California Riverside. https://citrusvariety.ucr.edu/citrus/US119.html Mine died last winter in a prolonged cold period that also killed Thomasville and many other hardier varieties
ReplyDeletewhat is your cold hardiness zone and the what were the killing temperatures and days they lasted?
DeleteI'm in zone 7b/8a The plant died in a pot. If it had been protected it would have survived prolonged cold. This was a few years ago The low was about 6 degrees F. A year or so later there were several days of freezing nights and cold sunny days, a bad combination for plants in pots exposed to the sun.
DeleteIt's not 1/4 grapefruit. Duncan grapefruit has grapefruit like fruit not quite as good as standard grapefruit. It was bred for cold tolerance and is fairly cold tolerant. I don't remember the lineage I think it has a small amount of trifoliate orange and half pummelo or something.
Delete