Statewide Citrus Research and Extension

Half cut fruit in the center with a whole fruit on each side.

Marathon

1420

Type

Mandarin

Origin

Developed by Fred G. Gmitter, Jr. (UF/IFAS)

Primary Market Use

Fresh

Season

Early (October)

Recommended Production System

Conventional

Size and Shape

Small to large, round and slightly oblate

Color

External Color: Yellowish orange
Internal Color: Yellowish orange

Flavor

Mandarin

Brix/Acid

11.37 to 11.91/0.51 to 0.60% in CUPS
9.66 to 10.76/0.37 to 0.50% in HLB-affected trees (2024)

General Information

An HLB tolerance mandarin selection. Susceptible to Alternaria and granulation late in the season and in young trees.

Photo Gallery

New Gallery 2025/11/17Half cut fruit in the center with a whole fruit on each side. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3654fnumber 10exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:07:15 PMwidth 5263cameramodel NIKON D7500Half cut and whole fruit on a black background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 11exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:06:23 PMwidth 5568cameramodel NIKON D7500Half cut fruit on a black background. focallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 11exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:06:00 PMwidth 5372cameramodel NIKON D7500Whole fruit on a black background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 11exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:05:37 PMwidth 5568cameramodel NIKON D7500Half cut and whole fruit on a black background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 11exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:04:41 PMwidth 5568cameramodel NIKON D7500Half cut and whole fruit with a ruler on a black background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3580fnumber 11exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 25.1originaldate 10/18/2023 5:04:17 PMwidth 4901cameramodel NIKON D7500Close-up view of the segment and the whole fruit on a white background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 6.3exposuretime 0.008orientation 1camerasoftware Adobe Photoshop 23.0originaldate 10/29/2021 5:58:02 PMwidth 5568cameramodel NIKON D7500Whole fruit with segments on a white background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 6.3exposuretime 0.008orientation 1camerasoftware Adobe Photoshop 23.0originaldate 10/29/2021 5:57:55 PMwidth 5568cameramodel NIKON D7500Whole fruit on a white background. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 6.3exposuretime 0.01orientation 1camerasoftware Adobe Photoshop 23.0originaldate 10/29/2021 5:54:27 PMwidth 5568cameramodel NIKON D7500Fruit hanging on a tree. Credit: T. Weeks, UF/IFAS CRECfocallength 40flash 16cameramake NIKON CORPORATIONheight 3712fnumber 5exposuretime 0.008orientation 1camerasoftware Adobe Photoshop 23.0originaldate 10/29/2021 3:25:36 PMwidth 5568cameramodel NIKON D7500