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.

FCM17-132

Active

Vaccinium corymbosum L. · Highbush blueberry

Rodriguez Armenta Hilda Patricia,Boches Peter Stefan

5 records

H213906

Active

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

NIELS ARTS

5 records

Burpeachfive

Active

Prunus persica (L.) Batsch · Peach

Slaughter John K.,Gerdts Timothy J.

7 records

BB14-321NA-1

Active

Vaccinium corymbosum L. · Highbush blueberry

WHEELER, Edmund J. BAÑADOS ORTIZ, Maria Pilar

5 records

African Sunset

Active

Citrus reticulata Blanco · Mandarin orange

George Diederick Jansen van Rensburg

8 records

Patricia

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

PL UA

8 records

Probus

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

PL SE

7 records

Narval

Active

x Triticosecale Wittm. ex A. Camus · Triticale

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

FR PL

8 records

Hugo

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

CZ PL

10 records

Kondrat

Active

Hordeum vulgare L. · Barley

Herasymova Anastasiia Ivanivna, Suprunenko Viktoriia Mykolaivna, Levshtanov Serhii Oleksandrovych, Ostanina Tamara Vitaliivna, Sukhorada Oleksii Ivanovych, Kremzina Ol`ha Mykhailivna, Vasiukov Pavlo Petrovych, Kuznietsova Tamara IEvheniivna, Serkin Mykola

7 records

White Smith

Active

Ribes uva-crispa L. · Gooseberry

CZ NL SI

9 records

Zairegem

Active

Prunus persica (L.) Batsch · Peach

ZAIGER FLOYD

ES FR IT

9 records

Zaifave

Active

Prunus persica (L.) Batsch · Peach

ZAIGER FLOYD

ES FR IT

5 records

Zaitabo

Active

Prunus persica (L.) Batsch · Peach

ZAIGER FLOYD

ES FR IT

9 records

Symphony

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

RONALD JOHN MCNICOL

HU NL UA

10 records

President drouard

Active

Pyrus communis L. · European pear

ES FR SI

8 records

Monalu

Active

Prunus persica (L.) Batsch · Peach

Rene Monteux-Caillet (FR)

ES FR IT

8 records

Monprime

Active

Prunus persica (L.) Batsch · Peach

Rene Monteux-Caillet (FR)

ES FR IT

7 records

Ive

Active

Prunus domestica L. · European plum

SVERIGES LANTBRUKSUNIVERSITÄTET

DK NL SE

5 records

Kometa

Protection expired

Deschampsia cespitosa (L.) P. Beauv. · Tufted hairgrass

SVABOVA| Vera Svabova c/o Oseva, Vsup Troubsko Slechtitelska stanice Vetrov / NASINEC IVO| Ing. Ivo Nasinec c/o Oseva, Vsup Troubsko Zuchtstation Vetrov / NASINCOVA| Zuzana Nasincova c/o Slechtitelska stanice Vetrov

CZ DE SK

5 records

Carmello

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds BV (NL)

FR PL SI

5 records

CHENIN BLANC

Active

Vitis vinifera L. · Common grape vine

ES MT UA

5 records

C.G. 10 YELLOW DELICIOUS

Active

Malus domestica (Suckow) Borkh. · Apple

ES FR NL

7 records

Tenira

Protection expired

Fragaria L. · Strawberry

L.M. Wassenaar c/o CPRO-DLO (vorher I.V.T.)

CZ SK

4 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.