Table 2.
Vegetation indices for ‘Calatina’ olive trees on 19 September and 10 October.
| NDVI a | NDRE | GNDVI | CVI | MSAVI | WI | NDGI | GI | |
|---|---|---|---|---|---|---|---|---|
| 19 September | ||||||||
| DS | 0.692 ± 0.012 | 0.191 ± 0.005 | 0.613 ± 0.014 | 2.891 ± 0.088 | 0.495 ± 0.031 | 0.171 ± 0.011 | 0.184 ± 0.014 | 1.441 ± 0.022 |
| FI | 0.733 ± 0.014 | 0.201 ± 0.006 | 0.639 ± 0.014 | 3.038 ± 0.121 | 0.521 ± 0.022 | 0.149 ± 0.009 | 0.202 ± 0.011 | 1.488 ± 0.029 |
| * | ** | ** | * | * | ** | * | ** | |
| 10 October | ||||||||
| DS | 0.733 ± 0.022 | 0.210 ± 0.007 | 0.639 ± 0.013 | 3.051 ± 0.140 | 0.505 ± 0.040 | 0.147 ± 0.009 | 0.190 ± 0.023 | 1.481 ± 0.038 |
| FI | 0.752 ± 0.019 | 0.233 ± 0.012 | 0.660 ± 0.020 | 3.131 ± 0.121 | 0.553 ± 0.038 | 0.129 ± 0.022 | 0.220 ± 0.034 | 1.564 ± 0.073 |
| n.s. | ** | * | n.s. | n.s. | * | * | * | |
When present, letters denote significant differences between full irrigated (FI) and drought stressed (DS) trees (P < 0.05). n.s., no significantly different; *, significantly different for P < 0.05; **, significantly different for P < 0.01. NDVI, normalized difference vegetation index; NDRE, normalized difference RedEdge index; GNDVI, green normalized difference vegetation index; CVI, chlorophyll vegetation index; MSAVI, modified soil-adjusted vegetation index; WI, water index; NDGI, normalized difference greenness index; GI, green index.