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Variety traits

Fruit acidity

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.

Sources10

Breakdown by crop

Grape acidity 1 160 Grape acidity 507 Acidity of apple fruit 202 Peach fruit acidity 116 Tomato Fruit Acidity 116 Blueberry fruit acidity 52 Acidity of sweet cherry fruit 32 Olive Fruit Acidity 32 Fruit Acidity — Garden Strawberry 32 Apricot fruit acidity 21 Lemon Fruit Acidity 20 Acidity of Mandarin Fruits 18 Fruit acidity — Sour cherry 17 Citrus fruit acidity 16 Orange Fruit Acidity 16 Blackberry Fruit Acidity 15 Plum fruit acidity 13 Fruit acidity — Japanese plum 13 Pear fruit acidity 12 Acidity of oat grains 9 Tomato Fruit Acidity 8 Acidity of Apple Fruit 7 Raspberry fruit acidity 7 Acidity of kiwifruit 6

Found in these crops

Grapevine 1 163 Common grape vine 507 Apple 505 Bigleaf hydrangea 301 Tomato 238 Peach 194 European pear 127 Sweet cherry 122 Garden strawberry 86 Highbush blueberry 77 Apricot 58 European plum 48

Varieties that feature this in their description

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.

DrisBlackThirtyFive

Application submitted

Rubus L. subg. Rubus · Blackberry

John Nader Fangary,Yunwen Wang,Mark F. Crusha,Gavin R. Sills

2 records

ES11

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

TIMOTHY D WOOD

2 records

Florencia

Application submitted

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Flevo Berry Holding B.V.

2 records

Druzhba

Active

Vitis L. · Grapevine

ALIEV ARIF MUZAFAROVICh / KOSTRIKIN IVAN ALEKSANDROVICh / IVANOV JORDAN / VYLChEV VASIL / MUZYChENKO BORIS ALEKSANDROVICh

2 records

Cumdeo Rouge

Active

Vitis L. · Grapevine

Wein- und Sektkellerei Jakob Gerhardt

3 records

F4119

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Rolfe Nominees Pty Ltd

2 records

ET EPB 716

Active

Helleborus orientalis x Helleborus x ericsmithii

Eternal Plant Boijl B.V.

2 records

Cumdeo Blanc

Active

Vitis L. · Grapevine

Wein- und Sektkellerei Jakob Gerhardt

3 records

Bronner

Active

Vitis L. · Grapevine

Norbert Becker

2 records

Divadona

Active

Prunus persica (L.) Batsch · Peach

PSB Producción Vegetal S.L

3 records

Brittney Lane

Active

Prunus persica (L.) Batsch · Peach

Zaiger, Chris Floyd|929 Grimes Ave., Modesto, CA 95358 / Zaiger, Gary Neil|1907 Elm Ave., Modesto, CA 95358 / Gardner, Leith Marie|1207 Grimes Ave., Modesto, CA 95358 / Zaiger, Grant Gene|4005 California Ave., Modesto, CA 95358

3 records

Benitsurugi

Active

Malus domestica (Suckow) Borkh. · Apple

Shigeki Moriya^^^Kazuyuki Abe^^^Kazuma Okada^^^Taku Shimizu^^^Hiroshi Iwanami^^^Nobuhiro Kotoda^^^Takashi Haji^^^Sae Takahashi^^^Takashi Baba^^^Yutaka Sawamura^^^Yuki Moriya^^^Hirohisa Nesumi^^^Ayato Hori

2 records

Beniminori

Application submitted

Malus domestica (Suckow) Borkh. · Apple

National Agriculture and Food Research Organization (NARO)

3 records

BB17-321PT-1

Active

Vaccinium corymbosum L. · Highbush blueberry

Wheeler Edmund J.,Banados Maria Pilar,Osorio Perez Melisa Andrea

2 records

Candy Floss

Application submitted

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Schroll Management ApS

2 records

Cebas 57

Active

Prunus armeniaca L. · Apricot

David Ruiz González^^^Antonio Molina Gómez^^^Manuel Rubio Angulo^^^Federico Dicenta López-Higuera^^^Antonio Molina Gómez Jr.^^^José Egea Caballero

3 records

Apolo

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

WHEELER, Edmund J. HANCOCK, James F. BAÑADOS ORTÍZ, María Pilar

2 records

Bravo

Active

Malus domestica (Suckow) Borkh. · Apple

State of Western Australia through its Department of Agriculture and Food

2 records

Bolero

Active

Prunus armeniaca L. · Apricot

PSB Producción Vegetal S.L

3 records

AC 501 022

Active

Actinidia chinensis Planch. · Kiwifruit

TESTOLIN, RAFFAELE CIPRIANI, GUIDO

3 records

AC 497 076

Active

Actinidia chinensis Planch. · Kiwifruit

TESTOLIN, RAFFAELE CIPRIANI, GUIDO

3 records

Boléro

Active

Hydrangea macrophylla (Thunb.) Ser. x H. scandens (L. f.) Ser.

Claudie Lambert^^^Hélène Bertrand^^^Daniel Relion^^^Danièle Daury^^^Agrocampus-Ouest Centre d'Angers - INHP

2 records

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