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Variety traits

Sugar content

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.

Sources10

Breakdown by crop

Found in these crops

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.

Pisum sativum L. · Pea

ALÍPIO DIAS & IRMÃO

PT
2 records

SUNSNOW

Active

Prunus persica (L.) Batsch · Peach

ES
2 records

Top Beka

Active

Solanum lycopersicum L. · Tomato

HU
2 records

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

IT
2 records

TN 90

Protection expired

Nicotiana tabacum L. · Tobacco

HU
2 records

Pisum sativum L. · Pea

ES
2 records

Soontagana

Terminated

Vaccinium oxycoccos L. · Small cranberry

EE
3 records

Solarnet

Terminated

Cucumis melo L. · Melon

NL
2 records

Top Zmira

Protection expired

Solanum lycopersicum L. · Tomato

HU
2 records

Malus domestica (Suckow) Borkh. · Apple

SI
2 records

Thora

Active

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

DE
2 records

Rozália

Active

Vitis L. · Grapevine

HU
2 records

Ronjana

Protection expired

Beta vulgaris Garden Beet Group · Garden beet

DE
2 records

Rosamella

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

NL
2 records

Solanum lycopersicum L. · Tomato

NL
2 records

Rosadonna

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

NL
2 records

Romcor

Active

Pyrus communis L. · European pear

RO
2 records

Szirén

Active

Vitis L. · Grapevine

HU
2 records

Semapeel

Active

Solanum lycopersicum L. · Tomato

CZ
3 records

Scudino

Active

Solanum lycopersicum L. · Tomato

HU
2 records

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