“…The positive impact on the creation of the pine wood cells was also exerted by high rainfall in July of the year when the ring was formed, as they caused the extension of the period of intensive divisions of vascular cambium and the formation of large diameter cells. Low rainfall in summer is often a factor limiting the incremental growth of Scots pine basically throughout all of its range (Lührte, 1991;Lindholm et al, 1997;Irvine et al, 1998;Cinnirella et al, 2002;Wilczyński and Skrzyszewski, 2003;Pensa et al, 2005;Tuovinen, 2005;Pilcher and Oberhuber, 2007;Piovesan et al, 2008;Gruber et al, 2010;Juknys et al, 2014). Drought is a factor which often induces variability in growth patterns and mortality of Scots pine especially in dry areas (Bigler et al, 2006, Hereş et al, 2012, Herguido et al, 2016, Marqués et al, 2016.…”