RS-9
ActiveVitis L. · Grapevine
UNIVERSITY OF CALIFORNIA KEARNEY AGRICULTURAL CENTER
10 August 2026
The variety is the result of a natural cross between Gouais blanc and an unknown pollinator. The crop is characterized by medium vigor and a growing season of approximately 136 days. The variety has low resistance to fungal diseases such as botrytis, downy mildew, and black rot, and is also sensitive to spring frosts.
Berries are medium-sized, round, greenish-yellow in color, with thin skin and a light waxy bloom. The average yield of the variety is 100–130 c/ha. Due to its susceptibility to diseases, the variety tolerates grafting onto American rootstocks poorly and has been partially replaced by other varieties.
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.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ Folle blanche B.*FR
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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
AGACAL-AXENCIA GALEGA DA CALIDADE ALIMENTARIA
Vitis L. · Grapevine
Vitis L. · Grapevine
Nearby in the species list Foglia tonda N., Fogoneu, Fokiano N, Folgasão B, Folgasão Roxo R, Folha de Figueira, Folha de Figueira B, Folignan B, FOLLA REDONDA, Folle blanche, Folle noire de Nice N, Fonte Cal B, Forastera B., Forastera blanca, Forcada, Forcallat blanca, Forcallat tinta, Forestiera, Forgiarin N., Forsellina N.