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.
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Citrus clementina hort. ex Tanaka · Clementine
INIA-V.HERNANDEZ
Prunus armeniaca L. · Apricot
Allami Gyumolos, H
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Vitis vinifera L. · Common grape vine
Vitisnavarra
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Solanum lycopersicum L. var. lycopersicum · Tomato
VINATORU COSTEL
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Prunus persica (L.) Batsch · Peach
Daniela Giovannini^^^Alessandro Liverani^^^Sandro Sirri^^^Federica Brandi
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Ebihara Hiroshi
Vitis L. · Grapevine
Hajdu Edit / Meszaros Istvanne / Kovacs Zoltanne / Talas Katalin / Visontai Erzsebet
Rubus L. subg. Rubus · Blackberry
Sadowniczy Zaklad Doswiadczalny Instytutu Ogrodnictwa Brzezna Sp z o.o.
Avena sativa L. · Oat
Danko Hodowla Roslin Sp.z.o.o.
Citrus x limon (L.) Osbeck · Lemon
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Prunus persica (L.) Batsch var. nucipersica (Suckow) C. K. Schneid. · Nectarine
Enns, John H
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Trajkovski, Karin
Vaccinium corymbosum L. · Highbush blueberry
äVANRIK GREEN ENERGYö LTD (GE)
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Vitis L. · Grapevine
VOINOV YuRIJ VASIL'EVICh / LYSENKO ANATOLIJ DMITRIEVICh / SKRIPKIN NIKOLAJ SERGEEVICh / VORONOVA KIRA ANATOL'EVNA / RUBENIYa REVAZI KLEMENT'EVICh / KIRANOV ALEKSANDR ALEKSANDROVICh