Fig. 4
From: Xylogenesis of Pinus radiata D. Don growing in New Zealand
Cambial activity. a CE and LT zone widths from April 2014 to May 2015 for Rotorua. b Associated dendrometer data (2-week moving average—only 1 point shown per week for clarity). c CE and LT zone widths from July 2016 to June 2017 for Kaingaroa site. Solid arrows indicate apparent phases of increased growth. Error bars represent 95% confidence intervals. WS winter solstice, SE summer equinox, SS summer solstice, AE autumnal equinox and WS winter solstice