Fig. 4From: Production and role of epicormic shoots in pruned hybrid poplar: effects of clone, pruning season and intensityPredictions for height and dbh, one (a, b) and two (c, d) growing seasons after pruning on trees with (1/3epi, 2/3epi) or without (0 = unpruned, 1/3, 2/3) epicormic shoots, all clones combined. Errors bars are standard errors of the mean. Bars labeled with the same letter within a graph are not significantly different (Tukey’s test at P < 0.05)Back to article page