Abstract
Large gene pool of sweet cherries is located in Research and Breeding Institute of Pomology Holovousy, Ltd. For this study, we selected 11 promising cultivars of sweet cherries (Amid, Aranka, Crispin, Helga, Horka, Korvik, Summit, Sunburst, Sweet Heart, Sylvana, Tamara) and 11 traditional cultivars of sweet cherries (Bing, Burlat, Büttners Späte, Germersdorfer, Karešova, Kaštánka, Kordia, Regina, Těchlovan, Troprichterova, Vanda).
Total sugar, glucose, sucrose and fructose were determined in these given cultivars. The samples were analysed by gas chromatography with flame ionisation detector (GC-FID) after derivatisation adjustment.
Higher concentration of total sugar in promising cultivars (12.5 g/100 g) was detected in comparison with traditional cultivars (10.3 g/100 g). Higher values were detected also in the results of another sugars (glucose, fructose), with the exception of sucrose.
Sucrose content of promising varieties was almost coincided with sucrose content of traditional varieties.