Rapid Determination of Leaf Water Content Using VIS/NIR Spectroscopy Analysis with Wavelength Selection

Table 3

The results of calibration and prediction sets by PLS models with variables selected by different methods.

Method	Number of variable	LVs	Calibration		Prediction
			RMSECV (%)	𝑅^2	RMSEP (%)	𝑅^2	RPD
Full	701	5	1.4	0.862	0.97	0.920	3.66
SPA	30	5	1.5	0.846	0.81	0.945	4.38
Bipls	260(8)	5	1.2	0.892	1.00	0.914	3.55
Bipls-SPA	25	5	1.5	0.846	0.73	0.955	4.86