RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is a hybrid of Bikan and Muscat Hamburg varieties. The ripening period is 152–160 days, which classifies it as a late-maturing grape variety. The bushes are characterized by strong growth and require training, shoot tying, and crop load control.
Clusters are large, cylindro-conical, often branched and loose in structure, with an average weight of about 600 g. Berries are very large, oval or egg-shaped, yellowish-amber in color with a thick waxy coating. The skin is firm, the pulp is fleshy, and possesses a pronounced muscat-citron aroma. Flowers are bisexual.
The variety has moderate resistance to downy mildew and berry rot, with high resistance to powdery mildew. Frost resistance is estimated at up to −23 °C.
3 jurisdictions
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Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified.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.
№ 236584
№ Muškat Italija
№ Italia*ES x, CY 1, HU 208943, RO 1059, BG x
№ VIN088
№ VIN089
№ EMPTY608
№ 004663
Records are sourced from official registry publications. Data sources and legal status
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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
Vitis L. · Grapevine
Vitis L. · Grapevine
Nearby in the species list Iordana 9-1 Bl, Şirian, Irsai Oliver, Irsai Olivér K.11, Irsay Oliver ISK, Isa B, Isabella N., Ister, Ister P.1, Istriţa, Italia 25 Gr, Italia 93 Mf, Italia B., Italia Rubi Rg, Italica B., Italijja, Itasca, Ithaki N, Itumeight, Itumeleven