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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.

Vaccarèse

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Romorantin

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Sauvignon gris

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

ROTUNA

Application submitted

Vitis vinifera L. · Common grape vine

(CTA) DIRECCION GENERAL DE DESARROLLO RURAL. CENTRO DE TRANSFERENCIA AGROALIMENTARIA

ES
1 record

Loin de l'Oeil

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Molette

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Pinotin

Active

Vitis vinifera L. · Common grape vine

Valentin Blattner-Haefeli und Frau Silvia

DE
2 records

DOVGA

Active

Vitis vinifera L. · Common grape vine

Gunvaldis Ilgvars Vesmins

LV
2 records

Zolotystyi ustoichyvyi

Terminated

Vitis vinifera L. · Common grape vine

Naumenko Mykola Pavlovych, Kutal`ova Tetiana Serhiivna, Chebanenko IEvheniia Pavlivna,

UA
1 record

PINOT MEUNIER

Application submitted

Vitis vinifera L. · Common grape vine

ES
1 record

JUAN GARCIA

Active

Vitis vinifera L. · Common grape vine

ES
1 record

Hron

Active

Vitis vinifera L. · Common grape vine

SK
2 records

ESCANYAVELLA

Application submitted

Vitis vinifera L. · Common grape vine

ES
1 record

MORISTEL

Active

Vitis vinifera L. · Common grape vine

ES
1 record

Kernling

Active

Vitis vinifera L. · Common grape vine

DE
2 records

Rkatsyteli

Active

Vitis vinifera L. · Common grape vine

UA
1 record

Bouysselet

Active

Vitis vinifera L. · Common grape vine

FR
1 record

Nobling

Active

Vitis vinifera L. · Common grape vine

DE
1 record

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