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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.

Chatus

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Aubun

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Knipperlé

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Ehrenbreitsteiner

Active

Vitis vinifera L. · Common grape vine

Dr. Johannes Zimmermann

DE
2 records

Gros Meslier

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Ehrenfelser

Active

Vitis vinifera L. · Common grape vine

LAND HESSEN GEISENHEIM| Land Hessen, vertreten durch FA f. Wein- und Gartenbau, Ge- traenketechnologie u.Landespflege-Fachgb. f.Rebenzuech.u.-veredl.-

DE
2 records

Muskat zhemchuzhnyi

Active

Vitis vinifera L. · Common grape vine

Tarakhtii Liudmyla Ivanivna, Meleshko Larysa Fedorivna, Sambors`ka Hanna Kyrylivna, Abliazova Aia Pavlivna, Tulaieva Maia Ivanivna, Dokuchaieva IEvheniia Mykolaivna, Aivazian Petros Karapetovych,

UA
1 record

Kondarev 10

Active

Vitis vinifera L. · Common grape vine

Mincho G. Kondarev

BG
2 records

Portugais bleu

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Kondarev 6

Active

Vitis vinifera L. · Common grape vine

Mincho Kondarev

BG
1 record

Rousseli

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Colombaud

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Ranno bez seme

Active

Vitis vinifera L. · Common grape vine

Dimitar Mitev, Zdravko Zankov, Ivan Todorov

BG
1 record

Lledoner pelut

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Sugrathirteen N

Withdrawn

Vitis vinifera L. · Common grape vine

Sun World International, Inc (US)

FR
1 record

Carcajolo

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Huxelrebe

Active

Vitis vinifera L. · Common grape vine

LAND RHEINLAND OPPENHEIM| Land Rheinland-Pfalz, vertreten durch DLR Rheinhessen-Nahe-Hunsrueck Dienstsitz Oppenheim

DE
2 records

Bіanka

Active

Vitis vinifera L. · Common grape vine

Chizmaziia Dorab Iozef

UA
1 record

Garbesso

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Oraniensteiner

Terminated

Vitis vinifera L. · Common grape vine

LAND HESSEN GEISENHEIM| Land Hessen, vertreten durch FA f. Wein- und Gartenbau, Ge- traenketechnologie u.Landespflege-Fachgb. f.Rebenzuech.u.-veredl.-

DE
1 record

Orbois

Active

Vitis vinifera L. · Common grape vine

INCONNU (FR)

FR
1 record

Albalonga

Active

Vitis vinifera L. · Common grape vine

LAND BAYERN WUERZBURG| Land Bayern, vertreten durch Bayerische Landesanstalt fuer Weinbau und Gartenbau - Abt. Weinbau und Oenologie -

DE
2 records

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