“…Stand characteristics, such as site type, stand origin, composition, age, stock density, phenological form, Kraft class, and crown projection area are particularly essential for the expected acorn yield and, accordingly, for the future cultivation of valuable timber (Beck & Olson, 1968;Chalupa, 1973;Sork, 1993;Dey, 1995;Matić et al, 1999;Wright et al, 2005;Paine & Beck, 2007;Didenko, 2008a;Didenko, 2008b;Klimo et al, 2008;Martiník et al, 2014;Dobrovolný et al, 2017, Slepykh & Korshikov, 2017. For the northeastern part of Ukraine, these issues have been covered in scientific works only in fragments (Didenko, 2008a;Didenko, 2008b) and therefore are very relevant now.…”