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agronom.cc cultivar database

Variety traits

Grape acidity

Vitis vinifera L.

A key indicator of berry quality, determined by the content of tartaric and malic acids, which influences harvest timing and the stability of future wine.

In the reference 507 varieties crop Common grape vine, where this is mentioned in the description.

To assess grape acidity, two complementary parameters are used: titratable acidity, which measures the total concentration of organic acids, and active acidity (pH), which characterizes the degree of hydrogen ion dissociation. Titratable acidity is typically measured in grams per liter expressed as tartaric acid.

Typical values for titratable acidity in grape must range from 4–12 g/l, with 6.0–8.0 g/l considered optimal for red varieties and 6.5–8.5 g/l for white ones. The optimal pH range for grapes is 3.0–3.6; values below 3.0 hinder fermentation, while values above 4.0 reduce stability.

Acidity is a dynamic indicator: during the ripening process, the acid level in berries decreases while sugar content increases. Monitoring the balance of these substances under various climatic conditions allows agronomists to determine the optimal harvest time, preventing excessive acidity or a "flat" taste in the berries.

General information about the subject — on the page Fruit acidity.

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.

Cualtacciu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Cualtacciu B

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

AURIU DE STEFANESTI

Active

Vitis vinifera L. · Common grape vine

POPA CAMELIASMARANDA GHEORGHEBADITESCU MARGARETA

RO
1 record

Verdesse

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Braucol

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Cacaboue

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Schoenburger

Protection expired

Vitis vinifera L. · Common grape vine

Hochschule Geisenheim Institut fuer Rebenzuechtung

DE
1 record

Pineau d'Aunis

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Blanc Dame

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Grand Noir N

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Kardyshakh

Terminated

Vitis vinifera L. · Common grape vine

Bankovska Mariia Hryhorivna, Stasieva Mariia Ivanivna, Yarmak IEvheniia Dmytrivna, Dylyk Antonina Petrivna, Storozhuk Kateryna Moisiivna, Tulaieva Maiia Ivanivna, Meleshko Larysa Fedorivna, Dokuchaieva IEvheniia Mykolaivna,

UA
2 records

Picardan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Terret blanc

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Terret-Bourret

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Odes'kyi chornyi

Active

Vitis vinifera L. · Common grape vine

Abliazova Aia Pavlivna, Tulaieva Maiia Ivanivna, Kostiuk Oleksii Nikiforovych, Dokuchaieva IEvheniia Mykolaivna, Tsebrii Mykhailo Petrovych, Aivazian Petros Karapetovych,

UA
1 record

Liliorila

Active

Vitis vinifera L. · Common grape vine

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR
2 records

Terret gris

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Araignan

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Alvarinho B

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Kometa

Active

Vitis vinifera L. · Common grape vine

Dylyk Antonina Petrivna, Stasieva Mariia Ivanivna, Yarmak IEvheniia Dmytrivna, Bankovska Mariia Hryhorivna, Tulaieva Maiia Ivanivna, Dokuchaieva IEvheniia Mykolaivna, Meleshko Larysa Fedorivna,

UA
2 records

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