Sheegene-20
ActiveVitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. Common grape vine · Fruit crops · bred by UNIVERSITY OF CALIFORNIA (US)
also searched as: аутумн роял
10 August 2026
The variety is one of the largest-berried among seedless varieties in the world. Grape vines have low to medium vigor. Clusters have a conical shape and medium density, with weight ranging from 700-800 g to 2 kg. Berries are large, oval, with fleshy pulp and thin skin.
The variety belongs to the late maturity group. Resistance to major fungal diseases is low; there is a tendency for cracking and rotting under high humidity. Winter hardiness ranges from -19 to -21°C. At full maturity, berry shedding is possible due to weak attachment to the pedicel.
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.
№ 4053797
Records are sourced from official registry publications. Data sources and legal status
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Same species
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
TIMOTHY SHEEHAN
Vitis vinifera L. · Common grape vine
Timothy P Sheehan, Sheehan Genetics LLC
Vitis vinifera L. · Common grape vine
Vitis vinifera L. · Common grape vine
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Nearby in the species list ATTIKI N, Aubin, Aubin vert, Aubun, AUREA, Aurelius, AURIGERA, AURIU DE STEFANESTI, AUTUM BLACK, AUTUM SEEDLESS, Auxerrois, Avanà , AVEACID, AZARGON, Azetium B, B17-2, Bacchus, Bachet, BAGA, Barbaroux