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Star Ruby grapefruit

Citrus paradisi Macfadyen

 

CRC 3770

PI 539478

VI 355  

STARRUBYSTARRUBYSTARRUBY

STARRUBYSTARRUBYSTARRUBY

Photos by Toni Siebert and David Karp, CVC, 5/22/2008. Photo rights. Carrizo, 25 year old tree. 

Source: Received as budwood from the United States Date & Citrus Station, Indio, Ca, 1977.

 

Parentage/origins: Star Ruby grapefruit is the result of irradiated Hudson grapefruit seed from the breeding program of R. A. Hensz of Texas A & I University, Weslaco, Texas.

 

Rootstocks of accession: Carrizo citrange, C-35 citrange

 

Season of ripeness at Riverside: February to June

 

Notes and observations:

3/18/1988, EMN: Fruit is similar to Marsh or Redblush except for dark pink flesh. This is the darkest of the pigmented grapefruit so far. Fruits are smallish this year.

OJB: Compared to other grapefruit varieties, Star Ruby is more difficult to grow well.  It has exhibited greater susceptibility to phytophthora, nutrient deficiencies, cold temperatures, and pest problems.  It does not appear to grow as vigorously as other grapefruit varieties, and the fruit is often smaller.  Nevertheless, when grown well, Star Ruby produces attractive red-blushed fruits with a smooth yellow rind.  The flesh is very darkly-pigmented, juicy, and low-seeded or seedless.  Star Ruby’s season of maturity is mid to late-season, and the fruit holds well on the tree with some loss of flesh color as the season progresses. 

 

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

 

USDA Germplasm Resources Information Network page for Star Ruby Grapefruit

CVC Fruit Quality Data for Star Ruby 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) 
STAR RUBY Lindcove 1/8/1997 10 89.4 95.2 0.9 3567.5 356.8 10.0 2.5 94.0 8.0 DARK RED 1674.8 46.9 13.0 1.9 7.0
STAR RUBY Lindcove 1/8/1997 10 86.4 93.0 0.9 3283.2 328.3 10.0 2.5 82.0 11.0 DARK RED NA NA 12.5 1.7 7.4
STAR RUBY Riverside 1/8/1997 10 72.7 73.6 1.0 1993.1 199.3 11.0 2.0 50.0 24.0 DARK RED 1102.6 55.3 11.5 1.8 6.5
STAR RUBY Riverside 1/8/1997 10 68.1 67.5 1.0 1671.7 167.2 10.5 2.0 47.0 24.0 DARK RED 930.1 55.6 11.9 1.9 6.4
STAR RUBY Irvine 1/14/1997 10 84.9 93.6 0.9 3481.6 348.2 8.5 1.5 70.0 17.0 MED. DK. RED 1898.6 54.5 11.7 2.1 5.7
STAR RUBY Riverside 1/27/1997 10 72.3 74.6 1.0 1959.3 195.9 10.0 2.0 64.0 26.0 DARK RED 1097.8 56.0 11.7 1.7 7.0
STAR RUBY Riverside 1/27/1997 10 68.5 72.2 0.9 1784.1 178.4 10.0 2.0 52.0 23.0 DARK RED 995.3 55.8 12.0 1.8 6.7
STAR RUBY Lindcove 1/28/1997 10 90.1 96.6 0.9 3611.9 361.2 10.0 2.5 91.0 6.0 MED. DK. RED 1644.1 45.5 12.7 1.8 7.3
STAR RUBY Lindcove 1/28/1997 10 88.3 95.5 0.9 3525.2 352.5 10.0 2.5 85.0 14.0 MED. DK. RED 1727.1 49.0 11.9 1.5 7.8
STAR RUBY Irvine 2/3/1997 10 80.5 89.6 0.9 3166.5 316.7 10.0 2.0 63.0 16.0 LIGHT RED 1890.3 59.7 11.4 1.9 5.9
STAR RUBY Riverside 2/17/1997 10 73.6 73.7 1.0 1932.9 193.3 10.5 2.0 50.0 23.0 DARK RED 1112.9 57.6 11.3 1.7 6.7
STAR RUBY Riverside 2/17/1997 10 74.7 73.8 1.0 1943.8 194.4 10.5 2.0 51.0 17.0 DARK RED 1078.8 55.5 11.8 1.7 7.1
STAR RUBY Irvine 2/18/1997 10 83.1 90.2 0.9 3228.7 322.9 10.0 2.0 62.0 14.0 DARK RED 1880.3 58.2 11.8 2.0 6.0
STAR RUBY Lindcove 1/6/1998 10 108.8 114.0 1.0 5543.8 554.4 10.2 3.0 103.0 2.0 DARK PINK 2727.1 49.2 8.8 1.2 7.4
STAR RUBY Lindcove 1/6/1998 10 91.4 97.2 0.9 3747.1 374.7 9.9 2.5 78.0 8.0 DARK PINK 1908.3 50.9 10.7 1.5 7.3
STAR RUBY Irvine 1/6/1998 5 46.7 49.3 0.9 2051.6 410.3 10.0 2.0 38.0 5.0 DARK PINK 1119.0 54.5 9.4 1.3 7.2
STAR RUBY Irvine 1/6/1998 5 42.8 46.4 0.9 1725.5 345.1 10.0 2.0 39.0 2.0 MEDIUM PINK 855.7 49.6 14.7 2.4 5.6
STAR RUBY Coachella 1/14/1998 10 84.6 86.1 1.0 2932.1 293.2 10.5 2.0 72.0 8.0 DARK PINK 1505.0 51.3 9.1 1.4 6.8
STAR RUBY Irvine 1/30/1998 5 48.0 51.1 0.9 2314.4 462.9 9.0 2.5 38.0 7.0 MEDIUM PINK 1200.7 51.9 9.2 1.3 7.1
STAR RUBY Irvine 1/30/1998 6 50.5 55.5 0.9 2025.7 337.6 8.5 2.0 47.0 5.0 LIGHT PINK 1010.0 49.9 14.1 2.6 5.4
STAR RUBY Lindcove 2/5/1998 10 87.6 95.3 0.9 3607.1 360.7 10.5 2.0 83.0 5.0 DARK RED 1928.0 53.5 10.1 1.4 7.4
STAR RUBY Lindcove 2/5/1998 10 112.2 114.7 1.0 6003.3 600.3 10.5 2.0 95.0 4.0 DARK RED 3082.5 51.3 7.0 0.9 7.4
STAR RUBY Coachella 2/6/1998 10 79.4 83.4 1.0 2694.5 269.5 9.5 2.0 63.0 22.0 DARK PINK 1420.5 52.7 10.3 1.5 6.9
STAR RUBY Lindcove 3/3/1998 10 111.2 121.5 0.9 6474.4 647.4 10.0 3.0 112.0 7.0 DARK PINK 2921.3 45.1 9.3 1.2 8.1
STAR RUBY Lindcove 3/3/1998 10 90.0 97.7 0.9 3767.5 376.8 9.5 3.0 90.0 10.0 DARK PINK 1852.7 49.2 8.9 1.1 8.2
STAR RUBY Irvine 3/5/1998 9 88.0 97.0 0.9 4578.8 508.8 8.0 2.5 80.0 11.0 DARK PINK 2534.0 55.3 9.4 1.1 8.3
STAR RUBY Irvine 3/5/1998 10 93.3 98.7 0.9 4215.1 421.5 8.1 2.5 101.0 11.0 YEL.-MED. PINK 2045.6 48.5 10.0 2.9 3.5
STAR RUBY Coachella 1/4/1999 10 79.6 90.6 0.9 3119.3 311.9 10.5 1.5 59.0 13.0 DARK PINK 1745.5 56.0 8.4 1.4 6.1
STAR RUBY Lindcove 1/5/1999 10 83.9 97.3 0.9 3226.8 322.7 10.0 2.0 107.0 2.0 DARK RED 1325.7 41.1 9.6 1.7 5.5
STAR RUBY Lindcove 1/5/1999 10 91.3 97.6 0.9 3399.9 340.0 10.0 2.0 103.0 6.0 DARK RED 1394.3 41.0 10.1 1.9 5.3
STAR RUBY  Riverside 1/8/1999 10 72.3 78.3 0.9 2137.2 213.7 8.5 2.0 53.0 19.0 MEDIUM PINK 1105.8 51.7 11.5 2.0 5.8
STAR RUBY  Riverside 1/8/1999 10 63.7 72.0 0.9 1663.3 166.3 9.5 2.0 43.0 24.0 MEDIUM PINK 875.6 52.6 12.7 2.1 6.0
STAR RUBY Irvine 1/12/1999 10 85.3 97.3 0.9 3774.1 377.4 10.0 1.0 66.0 16.0 VERY DK PINK 1966.7 52.1 9.9 2.4 4.1
STAR RUBY Irvine 1/12/1999 10 73.0 79.7 0.9 2241.1 224.1 10.0 1.0 52.0 14.0 DARK PINK 1196.3 53.4 11.7 2.4 4.9
STAR RUBY Lindcove 1/27/1999 10 99.0 87.6 1.1 3337.4 333.7 10.0 3.0 103.0 3.0 DARK PINK 1266.0 37.9 9.9 1.7 5.9
STAR RUBY Lindcove 1/27/1999 10 106.2 96.9 1.1 4097.1 409.7 10.5 3.0 114.0 1.0 MED.-DARK PINK 1606.0 39.2 9.3 1.7 5.4
STAR RUBY Coachella 1/28/1999 10 80.2 90.6 0.9 3119.3 311.9 11.0 1.5 64.5 13.0 VERY DK. RED 1710.5 54.8 8.8 1.3 6.7
STAR RUBY Irvine 1/28/1999 10 84.8 100.5 0.8 4064.4 406.4 9.5 2.5 64.0 15.0 DARK PINK 2095.2 51.6 9.8 2.0 4.8
STAR RUBY Irvine 1/28/1999 10 74.8 83.8 0.9 2558.6 255.9 9.5 2.5 51.0 7.0 DARK PINK 1391.4 54.4 11.8 2.0 5.9
STAR RUBY  Riverside 1/29/1999 10 71.4 77.2 0.9 2106.5 210.7 10.0 2.0 53.0 26.0 MEDIUM PINK 1090.2 51.8 11.8 1.9 6.3
STAR RUBY  Riverside 1/29/1999 10 66.9 74.2 0.9 1833.0 183.3 9.5 2.0 44.0 19.0 MEDIUM PINK 993.1 54.2 10.1 1.6 6.3
STAR RUBY Lindcove 2/11/1999 10 103.7 91.5 1.1 3608.3 360.8 10.0 3.0 115.0 3.0 DARK PINK 1432.2 39.7 9.0 1.6 5.8
STAR RUBY Lindcove 2/11/1999 10 104.5 93.3 1.1 3896.8 389.7 10.5 2.5 114.0 0.0 MED-DK PINK 1549.9 39.8 7.0 1.3 5.3
STAR RUBY  Riverside 2/17/1999 10 72.4 80.0 0.9 2279.7 228.0 9.0 2.5 45.0 14.0 DARK PINK 1219.4 53.5 11.9 1.9 6.2
STAR RUBY Irvine 2/19/1999 10 84.2 98.7 0.9 3856.7 385.7 8.0 2.0 62.0 11.0 MED.-DARK PINK 2036.4 52.8 9.0 1.7 5.3
STAR RUBY Irvine 2/19/1999 10 74.1 83.1 0.9 2505.6 250.6 9.5 2.5 56.0 4.0 MEDIUM PINK 1388.8 55.4 10.1 1.7 6.1
STAR RUBY Coachella 2/23/1999 10 86.0 98.5 0.9 3858.8 385.9 11.0 2.5 65.0 16.0 MED.-DARK PINK 2074.2 53.8 9.1 1.2 7.4
STAR RUBY Riverside 1/3/2000 10 81.5 10.5 7.8 2435.5 243.6 10.5 2.0 63.0 8.0 DARK PINK 1296.3 53.2 9.3 1.5 6.2
STAR RUBY Riverside 1/3/2000 10 79.9 9.0 8.9 2353.3 235.3 9.0 2.5 52.0 12.0 PINK 1289.8 54.8 11.7 1.8 6.6
STAR RUBY Lindcove 1/4/2000 10 81.8 88.5 0.9 2779.3 277.9 10.5 3.0 87.0 3.0 DARK PINK 1332.2 47.9 8.5 1.4 6.0
STAR RUBY Lindcove 1/4/2000 10 75.0 76.6 1.0 1983.6 198.4 10.0 3.0 77.0 10.0 DK.-V. DK. PINK 892.1 45.0 13.5 2.4 5.6
STAR RUBY Irvine 1/6/2000 10 79.4 91.3 0.9 3109.2 310.9 10.0 2.5 59.0 9.0 DARK PINK 1669.9 53.7 10.5 1.9 5.5
STAR RUBY Irvine 1/6/2000 10 77.6 89.0 0.9 2885.0 288.5 10.0 2.2 54.0 3.0 DARK PINK 1600.4 55.5 11.4 2.1 5.4
STAR RUBY Coachella 1/7/2000 10 75.9 80.8 0.9 2554.0 255.4 10.5 2.5 51.0 18.0 DARK PINK 1344.2 52.6 11.3 1.6 7.0
STAR RUBY Lindcove 1/24/2000 10 84.5 90.9 0.9 3034.5 303.5 10.0 2.5 89.0 10.0 V. DARK PINK 1353.0 44.6 13.7 1.9 7.3
STAR RUBY Lindcove 1/24/2000 10 73.7 77.5 1.0 2008.5 200.9 10.0 3.0 79.0 13.0 DARK PINK 811.3 40.4 15.2 2.3 6.7
STAR RUBY Irvine 1/26/2000 10 84.0 98.1 0.9 3769.3 376.9 8.5 2.0 69.0 9.0 DARK PINK 1947.1 51.7 10.4 2.0 5.3
STAR RUBY Irvine 1/26/2000 10 80.5 92.2 0.9 3305.0 330.5 8.0 2.0 58.0 1.0 DARK PINK 1853.1 56.1 11.5 2.2 2.3
STAR RUBY Coachella 1/27/2000 10 78.6 83.4 0.9 2848.8 284.9 8.5 1.5 51.0 12.0 DARK PINK 1558.3 54.7 8.1 1.1 7.2
STAR RUBY Riverside 1/28/2000 10 75.1 78.8 1.0 2293.0 229.3 10.0 2.5 58.0 8.0 DARK PINK 1163.7 50.8 12.7 2.0 6.5
STAR RUBY Riverside 1/28/2000 10 77.4 83.9 0.9 2659.3 265.9 10.0 2.0 60.0 15.0 PINK 1357.5 51.0 12.0 1.8 6.7
STAR RUBY Lindcove 2/15/2000 10 85.7 91.5 0.9 3033.0 303.3 9.0 3.0 95.0 7.0 DARK PINK 1382.1 45.6 12.5 1.7 7.3
STAR RUBY Lindcove 2/15/2000 10 77.4 79.0 1.0 2206.0 220.6 8.5 2.5 92.0 8.0 DARK PINK 893.4 40.5 14.1 2.1 6.8
STAR RUBY Riverside 2/15/2000 10 87.2 95.5 0.9 3600.3 360.0 8.5 1.5 77.0 34.0 V. LIGHT PINK 1769.6 49.2 9.7 1.5 6.4
STAR RUBY Riverside 2/15/2000 10 78.3 86.9 0.9 2834.1 283.4 8.0 1.0 62.0 55.0 V. LIGHT PINK 1409.2 49.7 12.3 1.8 6.9
STAR RUBY Irvine 2/22/2000 10 85.0 96.7 0.9 3801.8 380.2 2.0 10.0 62.0 6.0 DARK PINK 2018.0 53.1 10.9 1.7 6.3
STAR RUBY Irvine 2/22/2000 10 83.3 93.7 0.9 3390.5 339.1 2.0 10.0 62.0 4.0 DARK PINK 1913.4 56.4 11.5 2.0 5.8
STAR RUBY Coachella 2/23/2000 10 85.7 90.0 1.0 3284.8 328.5 9.5 2.2 64.0 5.0 DK.-V. DK. PINK 1750.1 53.3 8.8 1.3 7.0

 

 


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