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.
Rubus L. subg. Rubus · Blackberry
José Maurilio Rodriguez Mesa^^^Andrea M. Pabon^^^Gavin R. Sills^^^Jorge Rodriguez Alcazar
Rubus L. subg. Rubus · Blackberry
José Maurilio Rodriguez Mesa^^^Gavin R. Sills^^^Jorge Rodriguez Alcazar^^^Andrea M. Pabon
Solanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
Vitis L. · Grapevine
GOLODRIGA PAVEL YaKOVLEVICh / KOSTIK MARIYa ANTONOVNA / YuRChENKO VLADIMIR YuR'EVICh / GALENKO VASILIJ VIKTOROVICh / DRANOVSKIJ VIKTOR ALEKSANDROVICh / YuRChENKO OLEG VLADIMIROVICh
Malus Mill. · Apple
PEPINIERES ET ROSERAIES GEORGES DELBARD SAS
Malus domestica (Suckow) Borkh. · Apple
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Olea europaea L. · Olive
Malus domestica (Suckow) Borkh. · Apple
SNC Elaris (FR)/Institut National de la Recherche Agronomique (FR)
Prunus armeniaca L. · Apricot
Euro Pepinieres SCEA (FR)
Fragaria L. · Strawberry
Robert Hureau c/o S.C. Darbonne
Secale cereale L. · Rye
Danko Hodowla Roslin Sp.z.o.o.
Malus domestica (Suckow) Borkh. · Apple
SNC Elaris| FR
Calluna vulgaris (L.) Hull · Common heather
Peter Herzog
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Shoji Sakamoto
Vitis vinifera L. · Common grape vine
Reinhard Töpfer^^^Rudolf Eibach^^^Oliver Trapp
Prunus persica (L.) Batsch · Peach
PSB produccion vegetal S.L. (ES)
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
J.W.P. Kolk Bloemen B.V.
Solanum lycopersicum L. · Tomato
Sakata Seed Corporation, JP
Cucumis melo L. · Melon
BURPEE NL B.V.
Vitis L. · Grapevine
REINHARD ToPFER / RUDOLF EIBACH
Fragaria L. · Strawberry
WASSENAR LEENDERT MICHIEL
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Santho Beheer B.V.
Vitis vinifera L. · Common grape vine
Sicarex Beaujolais S.A.S., Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Sinapis alba L. · White mustard
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR