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.
Vitis vinifera L. · Common grape vine
Lykhovs`koi Volodymyr Volodymyrovych, Kotolovets` Zinaida Viktorivna, Poluliakh Alla Anatoliivna, Volynkin Volydymyr Oleksandrovych,
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Steve Grien
Brassica oleracea L. (Curly kale Group) · Curly kale
Enza Zaden Beheer B.V.
Beta vulgaris Fodder Beet Group · Mangelwurzel
L. Daehnfeldt A-S, DK
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
HORTPLANT Jerzy Dominikowski
Vitis vinifera L. · Common grape vine
N. Nedelchev, K. Stoev, M. Kondarev, Z. Zankov
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG
Beta vulgaris Sugar Beet Group · Sugar beet
NOVARTIS SEEDS A.B.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Doug Plaisted, Doug Plaisted,
Cucumis melo L. · Melon
Asgrow France S.A. (FR)
Vitis vinifera L. · Common grape vine
Dr. Norbert Becker im Staatl. Weinbauinstitut
Beta vulgaris Sugar Beet Group · Sugar beet
HOLLY
Malus domestica (Suckow) Borkh. · Apple
J Bick Griffith (US)
Solanum lycopersicum L. · Tomato
Dale M. Smith
Beta vulgaris Sugar Beet Group · Sugar beet
Hilleshog AB (SE)
Beta vulgaris Sugar Beet Group · Sugar beet
NOVARTIS SEEDS A.B.
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Solanum lycopersicum L. · Tomato
ZETA SEEDS S.L.
Solanum lycopersicum L. · Tomato
MERIDIEM SEEDS S.L.
Solanum lycopersicum L. · Tomato
Heinz North America Seed Department
Solanum tuberosum L. · Potato
001. Teagasc, IE
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Malopolska Hodowla Roslin Spolka z o.o.
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE NV-SA, BE