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World of CitrusWorld of CitrusCocktail Grapefruit
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc3555 (opens in a new tab)
Accessed
supershinythings · Reddit · r/Citrus
https://www.reddit.com/r/Citrus/comments/1q1fk5z/ (opens in a new tab)
One grower comment describes Cocktail grapefruit as large and juicy and says the fruit was fully sugar-ripe despite a partially green rind. The comment supplies no numeric measurement or scored taste intensity and does not identify a measured sample or growing conditions.
Accessed
Greg Alder · Greg Alder’s Yard Posts · 2024-02-16
https://gregalder.com/yardposts/cocktail-grapefruit-tree-a-profile/ (opens in a new tab)
Grower profile centered on one Southern California neighbor’s Cocktail-labeled tree and the author’s reported observations. Parentage and hybrid identity are attributed to UCR; the article calls this identification probable. No cultivar accession, trial design, or measurement methods are supplied.
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Marta · Growing Fruit forum · 2020-02-01
https://growingfruit.org/t/cocktail-grapefruit/26264 (opens in a new tab)
Forum post compares two Cocktail-labeled fruits: one from a 3–4-year graft grown in Davis from CCPP wood and one from an estimated ~20-year tree in the Goleta–Santa Barbara area. The older fruit had been stored and was reported as significantly sweeter. The author asks whether the specimens are the same cultivar; identity is unresolved.
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GDNC Nursery
https://www.gdncnursery.com/cocktail-grapefruit (opens in a new tab)
Commercial nursery profile. The page explicitly lists “Mandelo” under “Other names.” This citation supports that usage on a Cocktail-specific profile; the profile’s additional tree-care and fruit/ripening statements are uncited seller claims with no specimen or measurement methods.
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YouTube — Weird Explorer · 2020-08-02
https://www.youtube.com/watch?v=SJEp_I7OK40 (opens in a new tab)
Summary from transcript: The presenter reviews one fruit bought at an Asian supermarket and sold as “Japanese pomelo”; the fruit is not authenticated to a cultivar accession. At 4:38 the presenter rates this specimen “maybe a 6 out of 10 on my sugar scale.” This is a single subjective tasting, not an instrument reading or a controlled cultivar sample. The transcript gives no Brix or pH measurement. The presenter calls the fruit “mandalo”; that spelling is retained as the video's wording and is not treated as the distinct “Mandelo” alias.
Accessed
Guohong Albert Wu et al. · Nature · 2018-02-07
https://doi.org/10.1038/nature25447 (opens in a new tab)
Study-name finding: Wu et al. report low-acid pummelo as Cocktail grapefruit’s seed parent and King and Dancy as paternal-side grandparents. The catalog records Siamese Acidless Pummelo seed × Frua Mandarin pollen, and Frua’s catalog tree records King seed × Dancy pollen; this is compatible with that lineage. The paper does not name Frua as Cocktail’s direct parent or prove exact accession-to-clone identity.
Accessed