TABLE 2.
Crop-based vegetation indices computed in every trial plot.
| Spectral region/vegetation index (VI) | Equation* | References |
| Visible | ||
| Excess Green (ExG) | 2*G−R1−B | Woebbecke et al., 1995 |
| Green VI (VIgreen) | (G−R1)/(G+ R1) | Gitelson et al., 2002 |
| Triangular Chlorophyll Index (TCI) | 1.2*(R2−G)−1.5*(R1−G)*(R2/R1)1/2] | Haboudane et al., 2008 |
| Visible and NIR | ||
| Normalized Difference VI (NDVI) | (NIR1−R2)/(NIR1+R2) | Rouse et al., 1973 |
| Green NDVI (GNDVI) | (NIR2−G)/(NIR2+G) | Gitelson and Merzlyak, 1996 |
| Modified Chlorophyll Absorption in Reflectance Index (MCARI) | 10.1.1.1 [(NIR1−R2) −0.2*(NIR1−G)]*(NIR1/R2) | Daughtry et al., 2000 |
| Modified Simple Ratio (MSR) | [(NIR1/R2) −1]/[(NIR1/R2)1/2+1] | Chen, 1996 |
*Reflectance (%) at central wavelengths: B = 480 nm (blue region); G = 530 nm (green region); R1 = 670 nm (red region); R2 = 700 nm (Red-edge region); NIR1 = 740 nm (NIR region); NIR2 = 780 nm (NIR region).