Oroblanco Grapefruit Budwood

Citrus paradisi.

Oroblanco is a hybrid of 2N acidless pummelo and 4N seedy white grapefruit developed at the University of California, Riverside by Drs. Cameron and Soost.  The cross was made in 1958 and the Oroblanco selection was released in 1980. Patent held by the University of California.

Oroblanco trees grow vigorously to a large size with a somewhat spreading form.  The fruit has a smooth greenish-yellow rind at maturity.  Oroblanco fruits are oblate in form with a flattened base that has a pronounced indentation.  The rind is thicker than the typical grapefruit and both the rind and membranes exhibit the bitterness characteristic of Oroblanco’s pummelo parentage.  The flesh is very pale yellow and seedless.  The flavor is mild and sweet.  Oroblanco is early in its maturity and holds very well on the tree.

Carrizo citrange, C-35 citrange are good rootstocks of accession. Season of ripeness is Early December to March at Riverside and Late November through February at Lindcove.

Prepared by the Givaudan Citrus Variety Collection at The University of California Riverside.