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.
Prunus armeniaca L. · Apricot
David Ruiz González/José Egea Caballero/Antonio Jr. Molina Gómez/Pedro Martínez Gómez/Encarnación Ortega Pastor/Manuel Rubio Angulo/Antonio Molina Gómez
Solanum lycopersicum L. · Tomato
TAKII & CO LTD
Prunus persica (L.) Batsch · Peach
Arsene Maillard (FR)
Prunus cerasus L. · Sour cherry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Prunus persica (L.) Batsch · Peach
AC FRUIT (FR)
Prunus persica (L.) Batsch · Peach
Rene Monteux-Caillet (FR)
Citrus clementina hort. ex Tanaka · Clementine
VARIOS OBTENTORES
Capsicum annuum L. · Bell pepper
Graines Voltz (FR)
Prunus persica (L.) Batsch · Peach
Arsene Maillard (FR)
Solanum lycopersicum L. var. lycopersicum · Tomato
ISI SEMENTI SPA
Vitis vinifera L. · Common grape vine
José Ignacio Fernández Fernández/Leonor Ruiz García/María Rocío Gil Muñoz/ Celia Martínez Mora/Juan Antonio Bleda Sánchez/Adrián Martínez Cutillas
hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Vilmorin SA (FR)
Prunus persica (L.) Batsch · Peach
PSB Producción Vegetal S.L
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Prunus armeniaca L. · Apricot
José Egea Caballero
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Fragaria vesca L. · Wild strawberry
SEMO a.s
Solanum lycopersicum L. · Tomato
Domaine Public (FR)
Citrus reticulata Blanco · Mandarin orange
Nir Carmi/Yosef Yaniv/Ahuva Frydman-Shani/Aliza Vardi/Avraham Elhanati/Kanonich Yeoshua,/Luba Fanberstein
Malus domestica (Suckow) Borkh. · Apple
SERIDA
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Klaveren Arie D.|De Kwakel 1424 PE, NL