Lauzet
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
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.
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.
Listan
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Melnik 55
ActiveVitis vinifera L. · Common grape vine
Georgi Karamitov, Zdravko Zankov, Yane Atanasov
BG
1 record
Hibrid VI-4
ActiveVitis vinifera L. · Common grape vine
N. Nedelchev, K. Stoev, M. Kondarev, Z. Zankov
BG
1 record
ARDFORTY
Application submittedVitis vinifera L. · Common grape vine
Shachar Karniel
Aubin
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Plant droit
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Jurançon blanc
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Brun Fourca
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Merlese
Application submittedVitis vinifera L. · Common grape vine
COLUCCI EMILIA / FILIPPETTI ILARIA / INTRIERI CESARE
IT
1 record
MARINA RION
ActiveVitis vinifera L. · Common grape vine
ALBET I NOYA VITICULTOR, S.L.
ES
1 record
Bachet
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Velteliner rouge précoce
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Vitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Piquepoul gris
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Kristalen
ActiveVitis vinifera L. · Common grape vine
Galina Dyakova, Ralitsa Mincheva
BG
2 records
Raisaine
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Kermen
TerminatedVitis vinifera L. · Common grape vine
Mincho G. Kondarev, Kiril K. Kralev, Nedyalka I.Matevska, Ivan D. Ganev, Krastyu V. Shishkov, Mariya G. Nedeva
BG
1 record
Saphira
ActiveVitis vinifera L. · Common grape vine
Hochschule Geisenheim University Institut für Pflanzenzüchtung Herrn Prof. Dr. Ernst Rühl
DE
2 records
Piquepoul noir
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Feunate
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Raisaine B
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Persan
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Sugraone B
WithdrawnVitis vinifera L. · Common grape vine
Sun World International, Inc (US)
FR
1 record