Figure 4
The relationship between monthly water stress integral ( S ψ ) and monthly stem diameter growth for the period between October 2009 and May 2010 for the well-watered (open circles), early-season drought (filled triangle), late-season drought (filled square) and summer drought (open star) treatments. Best fit lines have been included for the early-season drought (solid line, r 2 = 0.33) and late-season drought (dashed line, r 2 = 0.57) treatments. The slopes were significantly different (P = 0.0356).