Species: V. vinifera
Country of origin: USA
Breeder: David Ramming and Ron Tarailo
Year released: 1999
Pedigree: A69-190 x C20-149
Berry color: Black
Use(s): Table grape
Summer Royal is a mid-season black seedless table grape developed and released by David Ramming and Ron Tarailo of the USDA-ARS in Fresno, California. Formerly known and tested as USDA selection B74-99, this cultivar was released in the spring of 1999. The cultivar resulted from the cross of seeded cultivar A69-190 and seedless cultivar C20-149 made in 1985.
The clusters are medium in size, conical in shape and are slightly loose with round to oval-shaped berries weighing approximately 5.0 grams. Less than 100 hectares of this cultivar have been planted to date. The cultivar has excellent eating characteristics; the berries are firm and crisp and have a sweet, neutral flavor.
Foundation Plant Services at UC Davis is the source of Foundation grapevine material for the nursery industry, and the staff can provide information about possible sources for obtaining this stock.
The National Grape Registry (NGR) contains information about varieties of wine, juice, and table grapes, raisins, and grape rootstocks available in the United States. Growers, nurseries, winemakers and researchers can find background information and source contacts for those grape varieties in this single convenient location.