Figure 2

Box-and-whisker plots of the diameter at breast height; the heartwood content at 6 m height for Kinleith and Mangatu Forests, and breast height for Rotoehu Forest; the heartwood a* colour at 0 m height for Kinleith and Mangatu Forests, and breast height for Rotoehu Forest. Diamond symbols show the average, horizontal boxes the median, 25th and 75th percentiles, and the horizontal lines extend to the minimum and maximum values.