Fig. 6
From: Xylogenesis of compression and opposite wood in mountain pine at a Mediterranean treeline
Timing of cell formation. a Plot showing the dynamic of wood formation for each type of wood (red = compression wood, blue = opposite wood). Each rectangular indicates the timing of the duration the cells have spent in the enlargement (light gray filling) and wall-thickening phase (gray). Dotted vertical lines indicate the onset and cessation of the growing season based on direct observation (see Fig. 3). b Comparison of cell residence time in enlarging and wall-thickening phase for each type of wood. The position on the x-axis is defined as the timing the cell enters in the corresponding phase. Vertical lines indicate half of the total number of cells