Characteristics The oroblanco is a
triploid citrus hybrid, resulting from a cross between an acidless
pomelo (
C. grandis Osbeck) and the
Marsh grapefruit (
C. paradisi Macf.). and is slightly less juicy than other grapefruits, though it does have a juice content of roughly thirty percent. Rarely, it contains small, aborted seeds. It has a thick, smooth peel and a large hollow core, A 2020 study found that the fruit retained many of the compounds found in grapefruit including
terpenes and
polyphenols. As it descends from an acidless pomelo, it lacks the bitterness generally associated with grapefruit, although it does attain an acidic aftertaste if grown in colder environments, or if eaten earlier in the growing season. is considerably higher than those of other grapefruit varieties; in California, it is required to have a ratio of at least 10:1. By comparison, Marsh grapefruit tested in Australia were found to have a ratio of 4.5:1.
Harvest Prior to its release, researchers planted oroblanco trees in a mild climate, a cold and humid climate, and a desert climate to analyze its production in different settings. They found that the specimens produced in the hotter climate were of a lower quality, and that those in the colder climate were excessively acidic. They thus determined that mild, inland climates were optimal for oroblanco growth. and are harvestable sooner than other grapefruit varieties. Oroblancos have been cultivated in
California,
Florida, and usually begins to yield fruit within five years of being planted. It is also susceptible to fruit fly infestations. == History ==