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
Y Yoshida, S Tsuchiya, S Sadamori, H Murakami, S Ishizuka (JP)
Malus domestica (Suckow) Borkh. · Apple
THE KENT INCORPORATED SOCIETY
Prunus avium (L.) L. · Sweet cherry
RIVERS (GB)
Trifolium vesiculosum Savi · Arrowleaf clover
Seed Technology & Marketing Pty Ltd
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Ribes uva-crispa L. · Gooseberry
Werner Grafmüller
Pyrus communis L. · European pear
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
SMALL DAVID W.
Prunus persica (L.) Batsch · Peach
Teruo Kozono (JP)
Hordeum vulgare L. · Barley
VASILESCU LILIANABUDE ALEXANDRUPOPESCU CONSTANTA
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :EVELEENS C P
Prunus armeniaca L. · Apricot
SDR Fruit LLC (US)
Citrus sinensis (L.) Osbeck · Sweet orange
Mercuri Frank / Mercuri Domenic / Nardi Frank / Nardi Micheal / Nardi Joe
Prunus persica (L.) Batsch · Peach
Zaiger's Inc Genetics
Vitis L. · Grapevine
Gerhardt Alleweldt c/o Institut für Rebenzüchtung
Zantedeschia Spreng. · Arum-lily
Sande B.V.
Prunus persica (L.) Batsch · Peach
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Quartier Neuf E.A.R.L.
Prunus persica (L.) Batsch · Peach
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Quartier Neuf E.A.R.L.
Prunus persica (L.) Batsch · Peach
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE) , Quartier Neuf E.A.R.L.
Prunus avium (L.) L. · Sweet cherry
UNIVERSITA' DEGLI STUDI DI BOLOGNA
Rubus L. subg. Rubus · Blackberry
University of Arkansas, USA
Prunus persica (L.) Batsch · Peach
Maillard Laurence|Elne, FR / Maillard Arsene|Elne, FR
Solanum lycopersicum L. · Tomato
The State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Peter Rudolf Kolster