TABLE 5.

Comparison of the accuracy of VI and WT-VI models using 10-fold cross-validation.

	VI		WT-VI
	R2	RMSE	R2	RMSE
NDVI	0.301	1.552	0.444	1.376
GNDVI	0.362	1.491	0.454	1.373
NDRE	0.356	1.497	0.429	1.402
SR	0.311	1.550	0.396	1.441
CIred edge	0.324	1.529	0.373	1.471
CIgreen	0.297	1.555	0.391	1.444
WDRVI	0.285	1.560	0.466	1.353
MTCI	0.328	1.531	0.367	1.481
EVI2	0.515	1.271	0.405	1.439
OSAVI	0.405	1.422	0.416	1.425
RVI	0.317	1.529	0.397	1.443
VARI	0.009	1.858	0.292	1.567