RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. Grapevine · Fruit crops · bred by LABORATORIO DE INVESTIGACION DE CULTIVOS HORTICOLAS DEL SERVICIO DE INVESTIGACION AGRICOLA
also searched as: суммер роял
10 August 2026
The variety is medium or vigorous, forming cylindro-conical bunches of moderately loose structure weighing 400–600 g. Berries are large, round or slightly oval in shape, with an average weight of 5 g. The variety belongs to seedlessness class I–II; seed rudiments are practically absent.
The plant is susceptible to downy mildew and powdery mildew, is characterized by low winter hardiness (down to -15…-22°C), and requires covering. The variety is sensitive to lighting conditions and responsive to the application of gibberellin and shoot girdling. Long vine pruning is recommended. Used for fresh consumption and raisin production.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 4 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 2003/6011
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 3 records protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
Vitis L. · Grapevine
David W.Cain
Vitis L. · Grapevine
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Nearby in the species list Sugrathirtytwo® Rs., Sugratwelve, Sulima B, Sultani Razaki, Sultanina, Sultanina bianca B., Sultanina Bijela, Sultanine B, Sultanine Blanche, Sumarello, Sumo Tinto, Sumoll Blanco, Sumoll Tinto, Sunred Seedless, Super ran bolgar, Superior, Sušac, Sušćan, Sušić, Sussumariello