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.
Nicotiana tabacum L. · Tobacco
Nikola K. Toskov, Vasil D. Pophristov, Sevda P. Stefanova
Prunus armeniaca L. · Apricot
SCEA PEPS (Pépinères Escande Programme Sélection)
Cucumis melo L. · Melon
UNITED GENETICS SEEDS CO
Beta vulgaris Sugar Beet Group · Sugar beet
WIELKOPOLSKA HODOWLA BURAKA CUKROWEGO SP.Z.O.O
Prunus avium (L.) L. · Sweet cherry
Solanum lycopersicum L. · Tomato
Gõrtnerei Piluweri
Solanum sisymbriifolium Lam. · Sticky nightshade
Vandinter Research B.V.
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Cucumis melo L. · Melon
UNITED GENETICS SEEDS CO
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
AGRA SOCIETA DEL SEME SRL
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Sorghum bicolor (L.) Moench subsp. bicolor · Sorghum
Eurosorgho (FR)
Solanum lycopersicum L. · Tomato
Vilmorin-Mikado S.A.S.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
UNITED GENETICS SEEDS CO
Beta vulgaris Sugar Beet Group · Sugar beet
SES EUROPE, N.V./S.A.
Pisum sativum L. · Pea
Przedsiebiorstwo Nasiennictwa Ogrodniczego i Szkolkarstwa w Ozarowie Mazowieckim Spolka z o.o.
Capsicum annuum L. · Bell pepper
HAO-DEMETER Institute of Plant Breeding and Genetic Resources
Cichorium endivia L. · Endive
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
Cucumis melo L. · Melon
Sakata Vegetables Europe SAS (FR)
Cucumis melo L. · Melon
UNITED GENETICS SEEDS CO
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Poljoprivredni Institut Osijek, HR
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
HAZERA (1939)
Solanum lycopersicum L. · Tomato
HM Clause Inc (US)