Variety traits
Malus domestica (Suckow) Borkh.
Sugar content in apples is a fruit quality indicator reflecting sugar concentration, which determines flavor profile, optimal harvest timing, and storage potential of the crop.
In the reference 145 varieties crop Apple, where this is mentioned in the description.
To assess sugar content, the refractometric method is used to measure the proportion of soluble solids in degrees Brix, as well as laboratory titration methods. An important quality criterion is the sugar-acid ratio, which represents the ratio of sugars to titratable acidity: for dessert varieties, it ranges from 20–34, while for sweet varieties, it exceeds 35. The absolute sugar content varies from 8–9% in temperate regions to 10–11% or higher in southern regions, with varieties showing 13–14% considered high-sugar.
This indicator serves as a key marker for harvest maturity alongside flesh firmness and the iodine-starch test. Sugar content depends on the genetic characteristics of the variety, agricultural practices, including nitrogen nutrition, and climatic conditions. Excessive nitrogen fertilization can disrupt sugar metabolism, while insufficient light or excessive irrigation may lower sugar concentration, negatively impacting the taste and shelf life of the apples.
General information about the subject — on the page Sugar content.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Malus domestica (Suckow) Borkh. · Apple
SNC Elaris (FR)/Institut National de la Recherche Agronomique (FR)
Malus domestica (Suckow) Borkh. · Apple
Richard R. Olsen y Larry M. Olsen
Malus domestica (Suckow) Borkh. · Apple
SNC Elaris| FR
Malus domestica (Suckow) Borkh. · Apple
KIKU, I
Malus domestica (Suckow) Borkh. · Apple
GFA BRISSET
Malus domestica (Suckow) Borkh. · Apple
Maillard Laurence / Maillard Arsene
Malus domestica (Suckow) Borkh. · Apple
IFO SARL (FR)
Malus domestica (Suckow) Borkh. · Apple
Prof. Dr. Christa Fischer / Dr. Peter Haugk im Institut für Obstzüchtung Dresden-Pillnitz
Malus domestica (Suckow) Borkh. · Apple
Roberto Gregori,Silviero Sansavini,Stefano Tartarini
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
APP Darzkopibas instituts
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
SERIDA
Malus domestica (Suckow) Borkh. · Apple
National Agriculture and Food Research Organization (NARO)
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Kalju Kask 100%, Estonian Univerity of Life Sciences Institute of Agricultural and Environmental Sciences Polli Horticultural Research Centre, Polli, Karksi-Nuia, 69108, Viljandimaa, Estonia
Malus domestica (Suckow) Borkh. · Apple
Jürgen Braun
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Jean-Luc Carrieres
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)