Table 4.
Correlation coefficients and significance levels obtained from cross-correlation analysis on Δiʹ
| Δ 1ʹ | Δ 2ʹ | Δ 3ʹ | Δ 4ʹ | Δ 5ʹ | Δ 6ʹ | |
|---|---|---|---|---|---|---|
| Δ 1 ʹ | 1 | |||||
| Δ 2 ʹ | 0.54∗∗ | 1 | ||||
| Δ 3 ʹ | 0.31 | 0.48∗∗ | 1 | |||
| Δ 4 ʹ | –0.12 | 0.10 | –0.12 | 1 | ||
| Δ 5 ʹ | 0.11 | –0.07 | 0.03 | 0.32 | 1 | |
| Δ 6 ʹ | 0.08 | 0.19 | 0.21 | 0.06 | 0.61∗∗∗ | 1 |
∗∗P≤0.01; ∗∗∗P≤0.001; n=6 × 31. Δiʹ denotes time series of intramolecular 13C discrimination corrected for triose phosphate cycling (Wieloch et al., 2018). Bold numbers refer to pairs of time series at symmetry-related glucose carbon positions. Data were measured on tree-ring glucose of Pinus nigra laid down from 1961 to 1995 at a dry site in the Vienna basin. This table was originally published as table 2 in Wieloch et al. (2018) and is provided here for convenience.