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 |