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.

YOUME H19-17

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Ryoji Irie

4 records

IFG Forty four

Active

Vitis L. · Grapevine

David W.Cain

4 records

TH-1125

Active

Vaccinium corymbosum L. · Highbush blueberry

Scott NeSmith

4 records

NS 15 14

Application submitted

Vaccinium corymbosum L. · Highbush blueberry

Vincent David Andrew Mazzardis

4 records

EB 8-50

Active

Vaccinium corymbosum L. · Highbush blueberry

Vincent Andrew David Mazzardis

5 records

NS 14-5

Active

Vaccinium corymbosum L. · Highbush blueberry

Vincent David Andrew Mazzardis

5 records

EB 9 2

Active

Vaccinium corymbosum L. · Highbush blueberry

Vincent Andrew David Mazzardis

5 records

FL06-556

Active

Vaccinium corymbosum L. · Highbush blueberry

Paul M. Lyrene James W. Olmstead

5 records

C95 12

Active

Vaccinium corymbosum L. · Highbush blueberry

Paul M. Lyrene^^^Gary Wright

5 records

Inored

Active

Malus domestica (Suckow) Borkh. · Apple

Telisa Grille

25 records

Aromas

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

UNIVERSITY OF CALIFORNIA WOLFSKILL EXPERIMENTAL ORCHARD

ES NL PL RO

21 records

Adelita

Active

Rubus idaeus L. · Red raspberry

Plantas de Nvarra

19 records

Plumac

Active

Malus domestica (Suckow) Borkh. · Apple

Plunkett Geoffrey R. P.

15 records

Diamante

Active

Fragaria L. · Strawberry

The Regents of the University of California

BG CZ HU SK

14 records

Meiyacom

Active

Rosa L. · Rose

Meilland, Alain A.|Antibes, France

FR IT NL

13 records

Suaprinine

Active

Prunus armeniaca L. · Apricot

TERRY A. BACON, DAVID W. CAIN et BRUCE D. MOWREY

13 records

PA1Unibo

Active

Prunus avium (L.) L. · Sweet cherry

Stefano Lugli, Riccardo Correale, Michelangelo Grandi

14 records

Prima

Active

Malus domestica (Suckow) Borkh. · Apple

The State University of New Jersey - Rutgers (US)

CZ ES FR HU LT NL +1

18 records

Sonata

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

Plant Research International, NL

FR HU NL PL UA

19 records

New York 1

Active

Malus domestica (Suckow) Borkh. · Apple

Susan K. Brown, Kevin Maloney, Cornell University

15 records

Sekzie

Active

Malus domestica (Suckow) Borkh. · Apple

THE MAWLEY FAMILY TRUST

17 records

Regalyou

Active

Malus domestica (Suckow) Borkh. · Apple

Maillard Arsene / Maillard Laurence

14 records

Fujion

Active

Malus domestica (Suckow) Borkh. · Apple

Michelangelo Leis, Alessio Martinelli, Francesco Tagliani, Gianfranco Castagnoli (deceased)

15 records

PA2Unibo

Active

Prunus avium (L.) L. · Sweet cherry

Stefano Lugli, Riccardo Correale, Michelangelo Grandi

13 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.