Table 3.
Spectral vegetation indices (SVI) identified to be insensitive in their temporal dynamics to the presence or absence of Septoria tritici blotch (STB) disease. For each dynamics parameter, a subset of eight SVI with the smallest difference (diff, GDD) or ratio (dimensionless) of the parameters between treatments was selected. The reported SVI were retained after subset selection based on pairwise correlations. The mean pairwise correlation (corr) is reported per dynamics parameter. Values in brackets report the minimum and maximum pairwise correlations.
| SVI | DynPar | diff/ratio | Pairwise corr |
|---|---|---|---|
| R780/R740 | t85 | 75.3 | 0.66 (0.26, 0.95) |
| CHLRE | t85 | 55.6 | |
| DCNI | t85 | 45.6 | |
| FII | t85 | 33.2 | |
| GNDVI | t85 | 81.3 | |
| PRInorm | t85 | 58.2 | |
| SIPI | t85 | 45.3 | |
| R780/R740 | M | 37 | 0.82 (0.60, 0.95) |
| CHLRE | M | 55.6 | |
| DCNI | M | 25.7 | |
| FII | M | 4.4 | |
| GNDVI | M | 40.5 | |
| PRInorm | M | 21.6 | |
| SIPI | M | 22.7 | |
| R780/R750 | b | 1.03 | 0.73 (0.48, 0.88) |
| CHLRE | b | 0.98 | |
| MTCI | b | 0.95 | |
| SR | b | 0.99 | |
| R780/R750 | dur | 1.03 | 0.75 (0.53, 0.88) |
| CHLRE | dur | 1 | |
| MTCI | dur | 1.02 | |
| SR | dur | 0.99 |