Table 3.
Parameters of the Gompertz function for intra-annual radial growth in 2007 and 2008 (see Fig. 5) based on dendrometer records (DMR) and analysis of xylem cell development (XCD) at study plots and R2 of the model (A = upper asymptote, Ip = inflection point, d yr = day of the year, κ = rate of change parameter, mean values ± SD)
| Year | Site | Method | A (μm) |
Ip (d yr) |
κ | R2 |
|---|---|---|---|---|---|---|
| 2007 | xeric | DMR | 320 ± 7 | 139 ± 1.7 | 0.079 ± 0.014 | 0.789 |
| XCD | 316 ± 8 | 136 ± 2.0 | 0.0477 ± 0.006 | 0.982 | ||
| dry-mesic | DMR | 525 ± 5 | 133 ± 0.9 | 0.059 ± 0.004 | 0.910 | |
| XCD | 425 ± 8 | 143 ± 1.4 | 0.0610 ± 0.007 | 0.989 | ||
| 2008 | xeric | DMR | 215 ± 6 | 142 ± 2.1 | 0.104 ± 0.028 | 0.737 |
| XCD | 251 ± 5 | 139 ± 1.3 | 0.0793 ± 0.010 | 0.989 | ||
| dry-mesic | DMR | 480 ± 4 | 148 ± 0.8 | 0.0512 ± 0.003 | 0.968 | |
| XCD | 486 ± 8 | 151 ± 1.2 | 0.0455 ± 0.004 | 0.994 |