UFR-5
Genetic Ancestry
- 31.25% Sweet Orange
- 25% Poncirus trifoliata
- 12.50% Unknown
- 12.50% Pummelo
- 12.50% Mandarin
- 6.25% Grapefruit
UFR-5 is a University of Florida citrus rootstock. Its plant patent describes a tetraploid zygotic hybrid from a sexual cross between two somatic-fusion parents: Nova mandarin hybrid + Hirado Buntan pummelo on the seed side, and Succari sweet orange + Argentine trifoliate orange on the pollen side.[3]
The UF/IFAS fifth-edition rootstock guide lists first commercial availability in 2015, intermediate tree size and 80–90% seedling uniformity. These are guide assessments drawn from Florida rootstock experience; tree performance depends on the grafted scion and growing conditions.[2]