University of California, Riverside
College of Natural and Agricultural Sciences
UCR Citrus Variety Collection - Home
UCR Home UCR Web Sites
Search
Resources



Flame grapefruit

Citrus paradisi Macfadyen

CRC 3993

PI 539487

VI 470

 

FLAMEFLAME

FLAMEFLAME

Photos by Toni Siebert (left and middle) and David Karp (right), CVC, 5/22/2008. Photo rights. Both trees on Carrizo, 17 year old trees.

 

Source: Received as budwood from the Winterhaven, Florida, via the Budwood Registration Program, 1988.

 

Parentage/origins: Flame grapefruit is reported to be from seed of a sport of Ruby Red grapefruit originating in the Houston, Texas grove of C. Henderson.  C. J. Hearn made the final selection, and Flame was released as a new variety in 1987. 

Rootstocks of accession: Carrizo citrange

 

Season of ripeness at Riverside: February to June

 

Notes and observations:

12/1989, DG: Vigorous trees. Fruit size is better than Star Ruby with flesh color about the same as Star Ruby. Probably not as cold sensitive as Star Ruby. Shows herbicide sensitivity. 

OJB:  Flame trees grow vigorously to a large size and are reported to be more cold-tolerant than Star Ruby. The fruit has a smooth yellow rind and usually has a pink blush.  The flesh is tender and juicy and has an internal color almost as dark as Star Ruby.  Flame’s season is mid to late-season; the fruit holds well on the tree with some fading of the internal color when held past maturity.

Availability: Commercially available in California through the Citrus Clonal Protection Program.

 

USDA Germplasm Resources Information Network page for Flame grapefruit

CVC Fruit Quality Data for Flame grapefruit:

(Old format)

CULTIVAR SAMPLE LOCATION DATE  NUMBER OF FRUIT PER SAMPLE TOTAL LENGTH PER SAMPLE (cm) TOTAL WIDTH PER SAMPLE (cm) LENGTH /WIDTH RATIO TOTAL WT PER SAMPLE (grams) MEAN WEIGHT PER FRUIT (grams) EXTERNAL COLOR BASED ON COLOR CHART TEXTURE BASED ON CHART TOTAL RIND THICKNESS PER SAMPLE (mm) TOTAL SEEDS PER SAMPLE INTERIOR COLOR DESCRIPTION TOTAL JUICE WT. PER SAMPLE (grams) % JUICE TSS (TOTAL SOLUBLE SOLIDS) % ACID (BASED ON CITRIC ACID) RATIO (TSS / % ACID) 
FLAME Lindcove 1/8/1997 10 86.5 94.7 0.9 3367.4 336.7 10.0 2.5 98.0 21.0 MEDIUM RED 1467.6 43.6 13.3 2.2 6.1
FLAME Lindcove 1/8/1997 10 82.5 94.7 0.9 3311.1 331.1 10.0 2.5 85.0 26.0 MEDIUM RED 1617.5 48.9 11.7 1.7 7.0
FLAME Riverside 1/8/1997 10 73.1 81.3 0.9 2409.0 240.9 10.0 2.0 55.0 29.0 RED 1288.6 53.5 10.0 1.4 7.0
FLAME Riverside 1/8/1997 10 76.7 83.6 0.9 2601.8 260.2 9.5 2.0 57.0 29.0  RED 1375.7 52.9 12.0 1.7 7.2
FLAME Coachella 1/9/1997 10 84.6 93.0 0.9 3427.7 342.8 10.0 2.5 68.0 42.0 MEDIUM RED 1778.3 51.9 10.5 1.4 7.6
FLAME Irvine 1/14/1997 10 86.6 98.5 0.9 3877.7 387.8 8.5 2.0 67.0 47.0 MEDIUM RED 2026.2 52.3 10.5 1.7 6.0
FLAME Irvine 1/14/1997 10 93.5 102.1 0.9 4206.9 420.7 8.5 2.0 83.0 49.0 MEDIUM RED 2066.9 49.1 10.1 1.7 5.8
FLAME Riverside 1/27/1997 10 77.8 84.7 0.9 2713.2 271.3 10.0 2.0 60.0 27.0 MEDIUM RED 1417.5 52.2 10.6 1.4 7.6
FLAME Riverside 1/27/1997 10 75.2 84.6 0.9 2702.1 270.2 10.0 2.0 58.0 29.0 MEDIUM RED 1457.8 54.0 11.9 1.6 7.4
FLAME Lindcove 1/28/1997 10 80.9 92.7 0.9 3112.0 311.2 10.0 2.5 82.0 16.0 MEDIUM RED 1519.7 48.8 11.6 1.6 7.4
FLAME Lindcove 1/28/1997 10 87.7 95.8 0.9 3386.4 338.6 10.0 2.5 95.0 20.0 MEDIUM RED 1482.6 43.8 12.8 2.0 6.4
FLAME Irvine 2/3/1997 10 80.5 89.6 0.9 3181.1 318.1 10.0 2.0 61.0 31.0 LIGHT RED 1765.1 55.5 10.5 1.6 6.5
FLAME Irvine 2/3/1997 10 90.7 99.5 0.9 4163.8 416.4 10.0 2.5 76.0 33.0 LIGHT RED 2186.7 52.5 10.2 1.6 6.3
FLAME Riverside 2/17/1997 10 82.5 88.7 0.9 3124.2 312.4 10.0 2.0 58.0 26.0 DARK RED  1735.2 55.5 10.0 1.3 7.7
FLAME Riverside 2/17/1997 10 81.3 89.1 0.9 3171.8 317.2 10.0 2.0 55.0 32.0 DARK RED  1819.3 57.4 10.6 1.4 7.8
FLAME Irvine 2/18/1997 10 83.4 92.0 0.9 3369.3 336.9 10.0 2.5 57.0 28.0 MEDIUM RED 1823.0 54.1 10.2 1.7 6.2
FLAME Irvine 2/18/1997 10 92.2 101.8 0.9 4219.5 422.0 10.0 2.0 73.0 30.0 MEDIUM RED 2220.8 52.6 9.6 1.6 5.9
FLAME Coachella 2/27/1997 10 84.6 91.3 0.9 3457.9 345.8 9.5 2.0 67.0 19.0 MEDIUM RED 1830.3 52.9 10.4 1.3 8.3
FLAME Lindcove 1/6/1998 10 101.1 118.4 0.9 5951.7 595.2 9.8 3.0 88.0 18.0 DARK PINK 2423.2 40.7 10.3 1.4 7.5
FLAME Lindcove 1/6/1998 10 95.1 110.1 0.9 4422.4 442.2 9.6 3.0 80.0 23.0 DARK PINK 2023.3 45.8 10.1 1.4 7.3
FLAME Irvine 1/6/1998 10 93.8 108.6 0.9 5022.6 502.3 10.0 1.5 72.0 33.0 MEDIUM PINK 2668.5 53.1 10.0 1.4 7.0
FLAME Irvine 1/6/1998 10 79.6 89.8 0.9 3132.7 313.3 10.0 1.5 50.0 36.0 MED.-DK. PINK 1773.4 56.6 10.8 2.0 5.5
FLAME Riverside 1/8/1998 5 56.6 60.4 0.9 3495.5 699.1 9.5 2.5 48.0 4.0 MEDIUM PINK 1628.3 46.6 8.8 1.2 7.4
FLAME Riverside 1/8/1998 6 61.9 67.1 0.9 3639.9 606.7 8.9 2.0 51.0 6.0 MEDIUM PINK 1843.0 50.6 9.1 1.2 7.4
FLAME Coachella 1/14/1998 10 100.2 104.6 1.0 4597.5 459.8 9.7 2.5 91.0 17.0 DARK PINK 2153.9 46.8 7.7 1.2 6.6
FLAME Riverside 1/30/1998 5 60.5 62.5 1.0 4056.0 811.2 10.0 2.0 55.0 12.0 MEDIUM PINK 1744.6 43.0 8.2 1.2 6.9
FLAME Riverside 1/30/1998 5 62.9 62.6 1.0 4076.7 815.3 10.0 2.0 56.0 11.0 MEDIUM PINK 1797.3 44.1 8.4 1.1 7.4
FLAME Irvine 1/30/1998 10 100.0 107.1 0.9 4944.5 494.5 9.5 2.0 79.0 21.0 LT. YEL.-MED.PINK 2551.1 51.6 7.3 1.3 5.6
FLAME Irvine 1/30/1998 10 79.4 90.5 0.9 3161.8 316.2 9.5 1.5 55.0 36.0 MEDIUM PINK 1806.1 57.1 7.8 1.2 6.6
FLAME Lindcove 2/5/1998 7 68.0 79.2 0.9 3758.9 537.0 9.5 2.0 67.0 8.0 MED PINK 1593.2 42.4 9.8 1.4 7.2
FLAME Lindcove 2/5/1998 10 100.0 111.1 0.9 5124.4 512.4 9.5 2.0 103.0 15.0 MED.-DARK PINK 2229.8 43.5 11.1 1.6 7.2
FLAME Coachella 2/6/1998 10 100.0 107.9 0.9 4866.7 486.7 9.5 2.0 90.0 41.0 MEDIUM PINK 2159.4 44.4 9.2 1.3 7.0
FLAME Riverside 3/2/1998 5 58.3 59.9 1.0 3462.6 692.5 9.5 2.0 54.0 7.0 MEDIUM PINK 1515.0 43.8 8.9 1.1 8.3
FLAME Lindcove 3/3/1998 9 79.5 92.4 0.9 3969.6 441.1 9.5 3.0 83.0 21.0 MED.-DARK PINK 1759.9 44.3 11.1 1.4 8.0
FLAME Coachella 3/4/1998 10 102.6 110.8 0.9 5383.3 538.3 9.5 3.0 88.0 30.0 DARK PINK 2654.7 49.3 9.0 1.1 7.9
FLAME Irvine 3/5/1998 10 103.2 110.5 0.9 5587.7 558.8 7.8 2.0 71.5 20.0 MEDIUM PINK 2239.7 40.1 8.8 1.1 8.3
FLAME Irvine 3/5/1998 10 86.9 93.8 0.9 3628.3 362.8 8.5 1.0 55.0 35.0 MEDIUM PINK 2140.6 59.0 10.4 1.2 8.8
FLAME Coachella 1/4/1999 10 84.3 97.4 0.9 3653.3 365.3 10.0 1.0 60.0 29.0 DARK RED 2000.0 54.7 9.4 1.6 6.1
FLAME Lindcove 1/5/1999 10 79.3 93.0 0.9 2745.7 274.6 10.0 2.0 103.0 17.0 MEDIUM RED 1040.8 37.9 9.2 1.7 5.6
FLAME Lindcove 1/5/1999 10 82.0 94.5 0.9 3005.7 300.6 10.0 2.0 94.0 18.0 MEDIUM RED 1321.0 43.9 10.0 1.9 5.3
FLAME Riverside 1/8/1999 10 69.5 78.8 0.9 1986.7 198.7 6.5 2.0 60.0 16.0 LT.-MED. PINK 956.1 48.1 10.0 1.7 6.1
FLAME Riverside 1/8/1999 10 67.0 75.8 0.9 1838.9 183.9 6.5 2.5 49.0 30.0 LT.-MED. PINK 890.7 48.4 11.1 1.7 6.5
FLAME Riverside 1/3/2000 10 82.2 82.2 1.0 2377.6 237.8 8.5 2.0 64.0 28.0 PINK 1203.1 50.6 10.0 1.7 6.0
FLAME Lindcove 1/4/2000 10 84.9 93.3 0.9 3072.8 307.3 10.0 3.0 94.0 8.0 DARK PINK 1288.4 41.9 11.6 2.0 5.8
FLAME Lindcove 1/4/2000 10 89.6 94.5 0.9 3339.6 334.0 9.0 2.0 94.0 19.0 DARK PINK 1438.2 43.1 11.8 2.1 5.6
FLAME Irvine 1/6/2000 10 62.4 68.8 0.9 1432.4 143.2 9.5 2.0 44.0 24.0 LT. PINK 693.6 48.4 12.0 2.4 5.0
FLAME Coachella 1/7/2000 10 83.5 89.3 0.9 3099.8 310.0 10.5 3.0 62.0 24.0 VERY DARK PINK 1636.3 52.8 10.8 1.5 7.4
FLAME Lindcove 1/24/2000 10 82.6 89.4 0.9 2826.3 282.6 10.0 2.5 94.0 9.0 DARK PINK 1200.6 42.5 13.6 2.0 6.9
FLAME Lindcove 1/24/2000 10 87.0 94.3 0.9 3329.2 332.9 9.5 2.5 91.0 20.0 PINK 1451.4 43.6 13.1 1.8 7.4
FLAME Irvine 1/26/2000 10 61.9 68.0 0.9 1419.0 141.9 8.0 2.0 44.0 25.0 LIGHT PINK 680.8 48.0 9.8 2.0 4.9
FLAME Coachella 1/27/2000 10 85.3 90.4 0.9 3312.8 331.3 8.0 3.0 61.0 39.0 V. DK.-DK. PINK 1783.7 53.8 10.3 1.7 6.2
FLAME Riverside 1/28/2000 10 82.1 88.0 0.9 2957.8 295.8 9.5 2.5 64.0 25.0 PINK 1480.7 50.1 10.3 1.6 6.5
FLAME Riverside 1/28/2000 10 83.9 87.9 1.0 2966.0 296.6 9.0 2.5 67.0 34.0 PINK 1448.8 48.8 9.8 4.6 6.2
FLAME Lindcove 2/15/2000 10 83.6 91.4 0.9 3016.1 301.6 8.5 3.2 96.0 12.0 PINK 1234.6 40.9 11.6 1.7 6.9
FLAME Lindcove 2/15/2000 10 86.4 93.6 0.9 3249.4 324.9 8.5 3.0 97.0 4.0 PINK 1358.0 41.8 10.7 1.6 6.7
FLAME Riverside 2/15/2000 10 88.4 93.9 0.9 3457.5 345.8 9.5 2.0 60.0 24.0 PINK 1759.5 50.9 10.4 1.6 6.6
FLAME Riverside 2/15/2000 10 85.9 88.1 1.0 2965.4 296.5 9.5 2.0 70.0 24.0 PINK 1473.5 49.7 7.8 1.2 6.5
FLAME Irvine 2/22/2000 10 64.2 70.3 0.9 1575.9 157.6 2.0 9.5 49.0 25.0 PINK 751.8 47.7 12.4 2.2 8.7
FLAME Coachella 2/23/2000 10 93.5 98.1 1.0 4121.2 412.1 8.5 2.5 74.0 23.0 DARK PINK 2096.4 50.9 10.2 1.3 7.7

 

 

 



How to Support the Collection


Page created by: Center for Visual Computing
Maintained by: tsiebert@ucr.edu

UC Seal