Differences in the Number of Stump Sprouts of Living Birches between the <i>C</i>. <i>purpureum</i> Strain R5₃ and Other Treatments.

<p>The effect of different treatments (<i>C</i>. <i>purpureum</i> strain or liquid control (LC)), the basal area of investigated stumps, the number of saplings and the volume of trees around an investigated sapling on the number of stump sprouts of birch (<i>Betula pendula</i> and <i>B</i>. <i>pubescens</i>) in eight regeneration areas of spruce (<i>Picea abies</i>) three months (in 2011), one year (in 2012) and two years (in 2013) after the treatments (generalized linear mixed model results). Living stumps have been included in the models. Statistically significant <i>p</i>-values (<i>p</i> < 0.05) for the model coefficients are in bold and indicative results have been underlined (0.05 ≤ <i>p</i> ≤ 0.10). The sign of a coefficient indicates whether an explanatory variable has an increasing (+) or decreasing (-) effect on the number of stump sprouts. See Figs. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117381#pone.0117381.g003" target="_blank">3b</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117381#pone.0117381.g004" target="_blank">4b</a>. Note: the subscript of a <i>C</i>. <i>purpureum</i> progeny relates to the breeding phase (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117381#pone.0117381.t002" target="_blank">Table 2</a>).</p><p>^a Liquid control i.e., cut stumps were spread with inoculum medium without <i>C</i>. <i>purpureum</i>.</p><p>^b The best parent stain based on an earlier study [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0117381#pone.0117381.ref013" target="_blank">13</a>].</p><p>^c The best progenies from Phase 2.</p><p>^d The best progenies from Phase 3.</p><p>Differences in the Number of Stump Sprouts of Living Birches between the <i>C</i>. <i>purpureum</i> Strain R5₃ and Other Treatments.