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Variety traits

Grape Ripening Period

Vitis L.

A characteristic of a variety's earliness, defined as the duration of the period from bud break to full physiological maturity of the berries, measured in days.

In the reference 1 407 varieties crop Grapevine, where this is mentioned in the description.

The grape ripening period is calculated as the number of days from bud break until the berries reach the conditions characteristic of the variety. The final phase is determined visually by changes in color, pulp consistency, and ease of detachment from the pedicel, as well as analytically by sugar accumulation levels and a decrease in acidity.

Varieties are categorized into groups based on the duration of the growing season, ranging from ultra-early, taking 95–105 days, to late, requiring 145–165 days or more. Classification depends directly on the sum of active temperatures in the region, which determines the suitability of a variety for a specific locality and also influences the schedule of green operations, irrigation strategy, and timing of plant protection product applications.

Selecting a maturity group involves risks: overly early varieties are vulnerable to late spring frosts, while late varieties may not accumulate sufficient sugars before autumn cold spells or may suffer damage from precipitation, which causes berry cracking and rot.

General information about the subject — on the page Maturity group.

Sources8

Varieties of Grapevine mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Sugrathirteen

Active

Vitis L. · Grapevine

SUN WORLD INTERNATIONAL

7 records

Autumn King

Active

Vitis L. · Grapevine

VI¥A DEL DEPARTAMENTO DE AGRICULTURA DE LOS EEUU DE ACA. EN EL SERVICIO DE INV. AGRICOLA

7 records

Sheegene 21

Active

Vitis L. · Grapevine

Timothy P.Sheehan

8 records

Navsel 4

Active

Vitis L. · Grapevine

Shachar Karniel

ES
6 records

Pluto

Active

Vitis L. · Grapevine

Stargrow Cultivar Development Pty Ltd

5 records

Itumsix

Active

Vitis L. · Grapevine

Juan Carreño Manuel Tornel

6 records

Itumseven

Active

Vitis L. · Grapevine

Juan Carreño Manuel Tornel

6 records

Itumnine

Active

Vitis L. · Grapevine

Juan Carreño Manuel Tornel

6 records

Sugrafive

Active

Vitis L. · Grapevine

Hahn, L.

FR
5 records

Sheegene 9

Active

Vitis L. · Grapevine

Timothy P.Sheehan

4 records

Sheegene 16

Active

Vitis L. · Grapevine

Timothy P.Sheehan

4 records

Perlette

Active

Vitis L. · Grapevine

RO SI
5 records

Barbera

Active

Vitis L. · Grapevine

SI
4 records

Starlight

Active

Vitis L. · Grapevine

THE STATE OF ISRAEL-MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT-AGRICULTURAL RESEARCH ORGANIZATION( ARO)

3 records

Sheegene 6

Active

Vitis L. · Grapevine

Timothy P.Sheehan

3 records

Navsel 2

Active

Vitis L. · Grapevine

Grapeco Limited

3 records

Itumfour

Active

Vitis L. · Grapevine

Juan Carreño Manuel Tornel

3 records

GRAPECOUS

Active

Vitis L. · Grapevine

Violetka Marinova Colova

3 records

Fleurtai

Active

Vitis L. · Grapevine

GUIDO CIPRIANI / ENRICO PETERLUNGER / GABRIELE DI GASPERO / MICHELE MORGANTE / SIMONE DIEGO CASTELLARIN / RAFFAELE TESTOLIN

HU
3 records

Suffolk Red

Active

Vitis L. · Grapevine

Cornell University Foundation Inc (US)

FR
2 records

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