Variety traits
Fruit acidity is a biological trait of a variety that determines taste quality, suitability for processing, and resistance to spoilage. It is assessed via the total concentration of all acids contained in the fruit.
Mentioned in descriptions 10 508 varieties reference book.
Fruit acidity is a biochemical quality indicator reflecting the sugar-acid ratio, which shapes the taste of the produce. This parameter determines the suitability of fruits for fresh consumption or industrial processing and also influences storage life, as an increased acidity level inhibits the development of pathogenic microorganisms.
For objective evaluation, the titratable acidity index is used, representing the total concentration of free acids and their salts. In laboratory conditions, this parameter is determined by the titration method using alkaline solutions until a fixed pH level is reached. The measurement results are expressed in grams per 100 grams of product or as a percentage.
In official variety testing, acidity is evaluated as one of the key quality indicators, often in combination with sugar content via the sugar-acid ratio. The final values of the trait depend on the crop species, although they are also influenced by the maturity stage of the fruits, growing conditions, and the mineral nutrition regime of the plants.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Vitis vinifera L. · Common grape vine
Z. Nakov, V. Valchev, M. Ivanov, V. Tsvetkov, V. Haygarov, T. Yoncheva
Prunus cerasus L. · Sour cherry
Laskavyi Viktor Volodymyrovych, Laskavyi Volodymyr Pylypovych,
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Prunus persica (L.) Batsch · Peach
Budzynskyi Oleksandr Serhiiovych,Yarmoliuk Ivan Savych,
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
Prof. Dr. Pal Kozma Lehrstuhl f. Wein- u. Gartenbau Universität Budapest
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Solanum lycopersicum L. · Tomato
Kliuchko Volodymyr Petrovych
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
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.-
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Bernardini Danilo
Solanum lycopersicum L. var. lycopersicum · Tomato
NIRIT SEEDS
Pyrus communis L. · European pear
Spriahailo Oksana Anatoliivna, Kucher Anatolii Oleksiiovych,
Malus domestica (Suckow) Borkh. · Apple
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Prunus domestica L. · European plum
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Vitis vinifera L. · Common grape vine
Abliazova Aia Pavlivna, Tulaieva Maiia Ivanivna, Kostiuk Oleksii Nikiforovych, Dokuchaieva IEvheniia Mykolaivna, Tsebrii Mykhailo Petrovych, Aivazian Petros Karapetovych,
Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
No information of breeder available for this variety
Ficus carica L. · Common fig
DOBRESCU VERASTANICA FLORINBUTCARU ANA CORNELIAILIESCU LAVINIA MIHAELAANCUTA (MOISESCU) EMILIAVELCEA NICOLAE MARIAN
Vitis L. · Grapevine
Miroslav Ivanov, Iliyan Simeonov, Anatoli Iliev
Vaccinium corymbosum L. · Highbush blueberry
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka