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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Triticum aestivum L. · Bread wheat
FW Ellison, GN Brown, M Lu, SG Moore, The University of Sydney
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Ryoji Irie
Prunus salicina Lindl. · Japanese plum
Terry A Bacon
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Niels Arts, Hydrangea Breeders Association B.V.
Festuca rubra L. · Red fescue
Pickseed Canada Inc., Ontario, K9V 4S3
Hordeum vulgare L. · Barley
Shevchenko IEvhen Petrovych, Tarasiuk Vasyl` Prokopovych, Kirdohlo IEvhen Kostiantynovych, Perekhrest Valentyna Arkhypivna, Netsvietaiev Volodymyr Pavlovych, Linchevskyi Anatolii Adamovych,
Fragaria L. · Strawberry
Stoeckle Leo B., Nelson Michael D., Nelson Steven D.,
Secale cereale L. · Rye
Hodowla Roslin Smolice Sp.z o.o Grupa IHAR
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Yosef Efraim|Hod HaSharon 45100, IL / Meizles Asaf|Hod HaSharon, IL
Prunus persica (L.) Batsch · Peach
PLANTAS DE NAVARRA, S.A.(PLANASA)
Vitis vinifera L. · Common grape vine
Walker Michael Andrew / Tenscher Alan C. / Riaz Summaira / Romero Ninfa
Citrus reticulata Blanco · Mandarin orange
Vardi Aliza / Spiegel-Roy Pinchas / Frydman-Shani Ahuva / Elchanati Avraham
Rubus L. subg. Rubus · Blackberry
University of Arkansas, USA
Vitis vinifera L. · Common grape vine
GIDEON JACOBUS NICOLAAS COETZEE
x Triticosecale Wittm. ex A. Camus · Triticale
Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy
Triticum aestivum L. · Bread wheat
MHR SEEDS LIMITED
Prunus persica (L.) Batsch · Peach
Lowell Glen Bradford (US)
Malus domestica (Suckow) Borkh. · Apple
Purdue Research Foundation, USA
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
MICHAEL A DIRR
Vitis vinifera L. · Common grape vine
MANUEL TORNEL MARTINEZ
Prunus persica (L.) Batsch · Peach
Norman Glen Bradford (US)/Lowell Glen Bradford (US)
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Ebihara H.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Ebihara H.