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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.

Courbu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Mescle

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Misket varnenski

Active

Vitis vinifera L. · Common grape vine

Zdravko Zankov, Yordan Ivanov, Kunyu Stoev, Stoyanka Cherneva

BG
1 record

Sciacarello

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Misket Viking

Active

Vitis vinifera L. · Common grape vine

Galina Dyakova, Ralitsa Mincheva

BG
2 records

Barbaroux

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Mauzac

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Saint-Macaire

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Lilaro

Active

Vitis vinifera L. · Common grape vine

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

1 record

Villaris

Active

Vitis vinifera L. · Common grape vine

Dr. Rudolf Eibach / Prof. Dr. Reinhard Töpfer

DE
2 records

Kaylashki rubin

Active

Vitis vinifera L. · Common grape vine

Miroslav Ivanov, Vasil Valchev, Zdravko Nakov, Vanyo Haygarov

BG
2 records

Palatina

Protection expired

Vitis vinifera L. · Common grape vine

Prof. Dr. Pal Kozma Lehrstuhl f. Wein- u. Gartenbau Universität Budapest

DE
2 records

Briz

Application submitted

Vitis vinifera L. · Common grape vine

Dimitar Babrikov, Venelin Roychev, Agricultural University - Plovdiv (BG)

BG
1 record

Mansois

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Servanin

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Nero d'Avola N

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Verdelho B

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Carignan blanc

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Granita N

Active

Vitis vinifera L. · Common grape vine

Institut National de la Recherche Agronomique (FR)/Sicarex Beaujolais (FR)

FR
1 record

Biancu Gentile

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Pamid clon 5 76

Active

Vitis vinifera L. · Common grape vine

Z. Nakov, V. Valchev, M. Ivanov, V. Tsvetkov, V. Haygarov, T. Yoncheva

BG
1 record

Altesse

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

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