o:2763 Influence of Biostimulators on the Quality of Apple Fruits en The influence of the application of soil biofertilizers on the content of sugar, macro, microelements and heavy metals in the fruits of the apple cv. Idared and Red Chief was analysed. In both cultivars, lower values of soluble solids content (SSC), total sugars (TS), inverted sugars (IS), sucrose and higher titratable acidity (TA) were measured, as well as increased absorption of Ca, Mg, Na, P, Cu, Mn. In cv. Idared, in addition to the mentioned elements, the absorption of K and Fe was increased, and the influence of biofertilizers contributed to the reduction of the absorption of Pb, Ni, Cr. The higher Ca content in the treatments enabled a more favourable K/Ca ratio, which contributes to a longer storage of fruits. Biofertilizers with specific consortia of bacteria influenced the utilization of high microbial biodiversity and had a stimulating effect on the uptake of nutrients from the soil and the optimization of their content in apple fruits. biostimulators, apple, macro and microelements, heavy metals 1552101 1311-0489 2023-09-08T06:28:26.175Z 44 no 46 Mira Milinković Institute of Soil Science 0000-0001-5175-6842 46 Vera Raičević University of Belgrade. Faculty of Agriculture 0000-0001-9046-2951 46 Svetlana Paunović Fruit Research Institute Cacak, Serbia 46 Jelena Tomić Fruit Research Institute Cacak, Serbia 46 Žaklina Karaklajić-Stajić Fruit Research Institute Cacak, Serbia 0000-0001-6541-6339 application/pdf 519208 https://unilib.phaidrabg.rs/o:2763 no yes 1 70 92000001 71A05 Journal of Mountain Agriculture on the Balkans 25 4 200 212 2022