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agronom.cc cultivar database

Variety traits

Grape bloom

Vitis vinifera L.

Grape bloom (pruine) is a natural epicuticular layer on the surface of berries, shoots, and leaves, which performs a protective function and serves as an indicator of maturity.

In the reference 214 varieties crop Common grape vine, where this is mentioned in the description.

For grapes, the presence of bloom is critical for the storage and transportation of table varieties, as an intact wax layer prevents moisture transpiration and mechanical damage. In agronomy, the intensity of the bloom serves as a visual indicator that the berries have reached physiological maturity.

Agronomic assessment requires distinguishing natural bloom from Oidium mycelium, which appears as easily removable "white dust" and has a characteristic musty odor. In scientific practice, wax extraction using solvents, scanning electron microscopy, and expert scoring scales of intensity are used to analyze the bloom.

General information about the subject — on the page Waxy bloom.

Sources8

Varieties of Common grape vine 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.

IFG Eight

Active

Vitis vinifera L. · Common grape vine

David W. Cain, PhD.

9 records

Solbrio

Active

Vitis vinifera L. · Common grape vine

United States of America as represented by the Secretary of Agriculture

10 records

Floreal

Active

Vitis vinifera L. · Common grape vine

NO DECLARADOS

6 records

Sauvignon kretos

Active

Vitis vinifera L. · Common grape vine

Vivai Cooperativi Rauscedo, I

SK
6 records

Merlot

Active

Vitis vinifera L. · Common grape vine

BG DE ES FR MT SK
10 records

Cardinal

Active

Vitis vinifera L. · Common grape vine

BG ES FR MT
8 records

Cabernet Franc

Active

Vitis vinifera L. · Common grape vine

DE ES FR MT SK
8 records

Petit Verdot

Active

Vitis vinifera L. · Common grape vine

BG ES FR MT
9 records

Semillon

Active

Vitis vinifera L. · Common grape vine

ES FR SK
6 records

Sangiovese

Active

Vitis vinifera L. · Common grape vine

BG MT
6 records

Malbec

Active

Vitis vinifera L. · Common grape vine

ES FR MT
6 records

Tempranillo

Active

Vitis vinifera L. · Common grape vine

ES FR MT
5 records

Mourvèdre

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT
4 records

Caladoc

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

BG FR
4 records

Godello

Active

Vitis vinifera L. · Common grape vine

Vitisnavarra

ES FR
4 records

Marselan

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

ES FR
4 records

TOURIGA NACIONAL

Application submitted

Vitis vinifera L. · Common grape vine

Villa Mayor

ES
3 records

Chasan

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

ES FR
3 records

Gamaret N

Active

Vitis vinifera L. · Common grape vine

Estación Changins

FR
3 records

Aléatico

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR MT
2 records

Calabrese N

Active

Vitis vinifera L. · Common grape vine

Institut Francais de la Vigne et du Vin

FR
2 records

Cinsaut

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
2 records