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World of CitrusWorld of CitrusUF RedLime
UF/IFAS Statewide Citrus Research and Extension, University of Florida
Official UF cultivar page; visible page metadata says last modified August 7, 2026, with no publication date shown. Identifies UF RedLime as a finger lime developed by Manjul Dutt and describes fruit, tree, bloom, rootstocks, and preliminary HLB response. Measurements and qualitative tolerance are page-reported, with no sample protocol or HLB assay details.
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Manjul Dutt · Citrus Industry · 2022-08-16
Author article describing UF RedLime and UF SunLime. RedLime is reported as narrow-oblong with tapered ends, 4.2–4.8 inches and 28.8 g, averaging 4–14 seeds under field conditions; SunLime is compared as cylindrical, 2.7–3.1 inches and 30.4 g. Also reports high anthocyanins and high HLB tolerance. No fruit sample counts, assay method, or rootstock-specific context is given.
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Manjul Dutt · UF/IFAS Statewide Citrus Research and Extension, University of Florida · 2025-08
UF research summary, posted August 2025. Calls both releases improved finger-lime hybrid cultivars and describes RedLime as narrow-oblong with slight taper and 3.5–5-inch fruit; reports high anthocyanins under Central Florida conditions. The page’s HLB take-home statement is group-level, not cultivar-specific trial data. No named parent cross is given.
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Justia Patents Search · 2022-05-03
https://patents.justia.com/patent/PP34188 (opens in a new tab)
United States Plant Patent PP34,188 describing UF RedLime. Patent text reports selection from seed and pollen parents identified as Citrus australasica var. sanguinea, with parent selections unnamed; the source does not establish named varieties or percentage ancestry. It gives a separate five-year Carrizo-budded Lake Alfred fruit sample with measurements and quality readings. These patent observations are source-specific, not universal cultivar ranges.
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Manjul Dutt · UF/IFAS CREC presentation hosted on Scribd · 2023-06-28
https://www.scribd.com/document/689802608/Dutt-Year2-2023 (opens in a new tab)
Manjul Dutt presentation dated June 28, 2023; Scribd host page is titled “UF Sunlime: New Finger Lime Variety | PDF | Lime (Fruit) | Trees.” RedLime slides 16–17 give a distinct fruit-measurement snapshot (18.72–24.10 g, 2.91–3.92 inches, 16–23 seeds), six-year Lake Alfred tree/yield observations, and preliminary HLB wording. No sample counts, rootstock, or assay protocol is reported; measurements conflict with other UF descriptions.
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WEB ADMIN · Specialty Crop Grower · 2022-03-25
https://specialtycropgrower.com/update-on-finger-limes-in-florida/ (opens in a new tab)
Secondary report on a March 23, 2022 online symposium, with statements attributed to Manjul Dutt. Reports that UF RedLime and SunLime grew well in Central/South Florida on standard rootstocks; describes RedLime testing as zero HLB presence and SunLime testing as very small amounts. The report gives no tree count, age, rootstock per cultivar, assay, CLas threshold, or testing period.
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Ernie Neff · Citrus Industry · 2023-12-26
https://citrusindustry.net/2023/12/26/finger-lime-interest-expands-in-florida/ (opens in a new tab)
Report on Manjul Dutt’s December 20, 2023 CREC OJ Break presentation. Attributes to Dutt the six-year Lake Alfred RedLime height (~6 ft), six-year yield (80–90 fruit), and preliminary high HLB tolerance/no bacterium detected. The source gives no assay, sample count, rootstock, or CLas threshold; program goal language about disease resistance is not trait evidence.
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Christina Herrick · The Packer · 2025-11-21
Secondary article attributing RedLime fruit description (narrow, long, 4.2–4.8 inches, 28.8 g, average 4–14 seeds) and high HLB tolerance to Dutt/UF. Also describes SunLime fruit and reports informal color preference feedback. No fruit sample counts, HLB assay details, rootstock or survey method are provided.
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UF/IFAS Citrus REC · YouTube · UF/IFAS Citrus REC · 2022-04-21
https://www.youtube.com/watch?v=12z85Q-DIu8 (opens in a new tab)
Summary from transcript: English captions cover 0:08–30:58 of the 31:12 presentation; captions are noisy automatic-style speech recognition and technical terms/numbers need caution. At 16:23–17:23 the presenter reports RedLime Lake Alfred block fruit at 18.72–24.10 g, 2.91–3.92 in, average 16–23 seeds, and notes larger fruit at Homestead. At 18:25–19:47 he describes upright/open canopy and preliminary HLB resistance/no bacterium detected in research plots; at 24:04–24:39 he reports annual multi-site testing, average SunLime Ct 31–33 across Lake Alfred, Immokalee and Homestead, no CLas bacterium detected in RedLime at those sites, and characterizes initial results as RedLime resistant/SunLime highly tolerant. No sample counts or assay protocol are given in captions. Do not infer pedigree from the garbled 16:28–16:37 passage.
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Manjul Dutt · UF/IFAS Citrus Research and Education Center · 2024-10
UF/IFAS presentation dated October 2024 (cover shows “October 2024 23”). All 37 slides were visually reviewed. Slide 18 reports six-year RedLime habit/height/red flush/main February–March bloom and limited 80–100-fruit yield; slide 19 gives a separate fruit snapshot (18.72–24.10 g, 2.91–3.92 in, 0–23 seeds). Slides 29–32 report preliminary cold-response observations comparing both cultivars; the presenter describes SunLime as tolerating colder conditions better than RedLime. No minimum temperature or threshold is established, and the cold comparison is not assigned a site in the reviewed slides. Slide 20 shows RedLime on Poncirus trifoliata DPI-7 planted at Citra in May 2023 but gives no compatibility outcome.
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