Variety traits
Sugar content is an indicator of the concentration of natural sugars in fruits or root crops, determining nutritional value and suitability for processing. This genetic trait is measured in degrees Brix (°Brix) or sugar degrees (°Z) and is critical for assessing variety quality.
Mentioned in descriptions 14 616 varieties reference book.
Sugar content characterizes the concentration of glucose, fructose, and sucrose in plant tissues. For the processing industry, this indicator is a key requirement determining the yield of the finished product, whereas for table crops, it shapes the flavor balance in combination with acidity. A variety's ability to accumulate sugars promptly also allows for effective planning of harvest dates and production facility capacity.
Sugar content is measured using laboratory and field methods. Refractometry allows for the assessment of solids content in degrees Brix, polarimetry determines sucrose concentration in international sugar degrees, and areometry establishes the indicator by measuring juice density. The choice of method depends on the crop and the objectives of the analysis, whether for express assessment or establishing the commercial value of raw materials.
The realization of the genetic potential for sugar content depends on environmental conditions and agrotechnics. Light intensity and the sum of active temperatures, which determine the intensity of photosynthesis, have a significant influence, as do moisture availability and mineral nutrition, particularly potassium supply. During variety trials, breeding material is compared with standards, which allows for the identification of varieties with high stability of sugar accumulation under various climatic conditions.
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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Moshe Zalsman
Prunus persica (L.) Batsch · Peach
VIVEROS PROVEDO, S.A.
Solanum lycopersicum L. · Tomato
Sylvain Bontems
Vitis vinifera L. · Common grape vine
AKTIONSGEMEINSCHAFT| Aktionsgemeinschaft zur Erhaltung von Rebsorten e.V. im DLR Rheinhessen-Nahe-Hunsrueck
Vitis vinifera L. · Common grape vine
Prof. Dr. H. Becker
Lolium x hybridum Hausskn. x Festuca pratensis Huds.
ILVO Plant
Solanum lycopersicum L. · Tomato
Kees Reinink
Solanum lycopersicum L. · Tomato
Bayer Holland B.V.
Brassica oleracea L. (Kohlrabi Group) · Kohlrabi
Muzhylko Dmytro Valentynovych, Dymchenko Tetiana Mykolaivna, Muzhylko Viktor Valentynovych,
Cucumis melo L. · Melon
SEMILLAS FITO, S.A.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Anzhelika Rakov
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Livestock and Seed Division (US)
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
HAZERA SEEDS BV
Vitis vinifera L. · Common grape vine
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Pisum sativum L. · Pea
Vovk Zhanna Mykolaivna
Solanum lycopersicum L. · Tomato
Harmoniz
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed
Nicotiana tabacum L. · Tobacco
G. Stankev, H. Bozukov
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Dr. Mario Martinelli
Solanum lycopersicum L. · Tomato
Harmoniz
Beta vulgaris Sugar Beet Group · Sugar beet
SAS Florimond Desprez Veuve et Fils (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed