Skip to main content
. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Tree Physiol. 2010 Mar 1;30(4):490–501. doi: 10.1093/treephys/tpq003

Table 4.

Parameters of the Gompertz function for xylem cell dynamics in 2007 and 2008 (see Figure 4) at study plots and R2 of the model (A = upper asymptote, Ip = inflection point, κ = rate of change parameter, mean values ± standard deviation).

Site Year A
(n cells)
Ip
(day of the year)
κ R2
Xeric 2007 12 ± 0.2 126 ± 1.8 0.038 ± 0.004 0.987
2008 12 ± 0.2 136 ± 1.3 0.049 ± 0.004 0.993
Dry-mesic 2007 16 ± 0.3 141 ± 1.8 0.036 ± 0.003 0.990
2008 15 ± 0.2 148 ± 1.3 0.035 ± 0.002 0.995