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
Manuel Tornel Martinez y Juan Carreño Espin
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Prunus salicina Lindl. · Japanese plum
ZAIGER'S INC. GENETICS
Malus domestica (Suckow) Borkh. · Apple
Olivier Grard^^^Alexandre Grard
Prunus avium (L.) L. · Sweet cherry
Stephen M Southwick, SMS Unlimited LLC
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
NUNHEMS
Prunus avium (L.) L. · Sweet cherry
Raymond Saunier c/o INRA
Prunus armeniaca L. · Apricot
PSB produccion vegetal S.L. (ES)
Vaccinium corymbosum L. · Highbush blueberry
The New Zealand Institute for Plant and Food Research Limited, The New Zealand Institute for Plant and Food Research Limited
Prunus salicina Lindl. · Japanese plum
Zaiger's Inc. Genetics
Daucus carota L. · Carrot
The Texas A&M University System
Prunus salicina Lindl. · Japanese plum
Lowell Glen Bradford (US)
Malus domestica (Suckow) Borkh. · Apple
HM the King in Right of Canada a.r.b the Minister of Agriculture and Agri-Food
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Toshiki Mori, Junna Kohori, Hatsuyoshi Kitamura, Takumi Inoguchi, Ichiro Kata, Masami Ishikawa, Fumi Maeda,Kazuyoshi Sone
Prunus avium (L.) L. · Sweet cherry
Troy M. Toftness
Prunus salicina Lindl. · Japanese plum
Terry A. Bacon^^^Bruce D. Mowrey^^^David W. Cain
Citrus reticulata Blanco · Mandarin orange
Janse van Rensburg George Diederick|Nelspruit, ZA
Prunus salicina Lindl. · Japanese plum
Terry Bacon and David W. Cain, Sun World International, LLC
Vitis vinifera L. · Common grape vine
Striem Michael
Vitis L. · Grapevine
Timothy P.Sheehan
Vitis L. · Grapevine
Timothy P.Sheehan
Vitis vinifera L. · Common grape vine
Terry A Bacon
Prunus armeniaca L. · Apricot
David W. Cain,Terry A. Bacon,Bruce D. Mowrey
Rubus idaeus L. · Red raspberry
Marina Gambardella, Pilar Banados, Javiera Grez, Elida Contreras, Pontificia Universidad Catolica de Chile