Table 2. RMSE for the evaluation scenarios proposed to assess the methodology, where N_comp refers to the number of significant components chosen from the Principal Component Analysis (PCA); E1, E2, and E3 refer to the experiments UFV1, UFV2, and FEVP3 respectively; L and C refer to the leaf and the canopy spectra respectively; B-NIR and dB-NIR refer respectively to the reflectance and the FDR data between the blue and the NIR spectral regions; and R-NIR and dR-NIR refer respectively to the reflectance and the FDR data between the red and the NIR regions.

The wavelength ranges considered in these scenarios were from 440 to 850 nm for the B-NIR and dB-NIR data, and from 630 to 850 nm for the R-NIR and dR-NIR data. The minimum and maximum RMSE values of each column were highlighted with bold and bold-and-italic format respectively.

Ncomp			3	5	6	8	10	12	15
E1	L	B-NIR	4.49	4.94	4.98	4.75	4.29	4.61	4.23
		dB-NIR	4.46	4.21	4.30	4.05	4.20	4.17	4.47
		R-NIR	4.74	4.65	4.13	4.83	4.22	4.15	4.81
		dR-NIR	4.04	4.20	4.29	4.34	4.13	4.20	4.57
	C	B-NIR	7.01	6.86	6.69	6.74	6.88	6.93	7.05
		dB-NIR	6.87	6.93	6.56	6.94	6.85	6.84	6.87
		R-NIR	6.81	7.03	6.72	6.80	6.73	6.97	7.37
		dR-NIR	7.11	7.06	6.92	7.05	6.87	6.93	7.01
E2	L	B-NIR	3.88	3.70	3.16	3.52	3.64	3.65	3.48
		dB-NIR	3.08	3.54	3.57	3.44	3.53	3.48	3.81
		R-NIR	4.36	3.60	3.72	3.79	4.01	4.50	4.10
		dR-NIR	3.05	3.36	3.64	3.64	3.51	3.82	3.76
	C	B-NIR	2.73	2.46	3.08	2.40	2.82	2.89	2.71
		dB-NIR	2.63	2.65	2.68	2.73	2.76	2.47	2.95
		R-NIR	2.43	2.71	2.69	2.58	2.69	2.59	2.84
		dR-NIR	2.76	2.60	2.63	2.67	2.97	2.64	2.79
E3	L	B-NIR	3.72	3.75	3.79	3.67	3.39	4.09	3.35
		dB-NIR	4.19	3.61	3.56	3.65	3.89	4.00	3.34
		R-NIR	4.09	3.82	3.77	4.09	3.85	3.98	3.73
		dR-NIR	3.61	3.68	3.85	3.63	3.92	3.96	3.21
	C	B-NIR	2.43	2.42	2.43	2.32	2.44	2.21	2.43
		dB-NIR	2.43	2.45	2.37	2.42	2.16	2.42	2.37
		R-NIR	2.43	2.39	2.41	2.47	2.43	2.25	2.45
		dR-NIR	2.48	2.47	2.41	2.27	2.28	2.51	2.31