F. Emurlova1*, A. Ivanov1 1Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 7 June 2022; accepted for publication 31 August 2023) Abstract. A study was conducted to investigate the effect of bunch normalization

N. Prodanova-Marinova1*, Y. Belberova1, F. Emurlova2 1Agricultural Academy, Institute of Viticulture and Enology, 5800 Pleven, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 21 June 2022; accepted f