Non-destructive pre-symptomatic detection of gray mold infection in kiwifruit using hyperspectral data and chemometrics

Table 6 The prediction results of kiwifruit SSC values by PLSR and SVR models using Savitzky–Golay 1^st derivative spectral data and different wavelength selections

Prediction model	Wavelength selection	\({R}_{Cal}^{2}\)	\({RMSE}_{Cal}\)	\({R}_{CV}^{2}\)	\({RMSE}_{CV}\)
PLSR	None	0.9564	0.2645	0.7800	0.5903
	CARS	0.9644	0.2364	0.9317	0.3290
	SPA	0.6383	0.7581	0.6007	0.7864
	UVE	0.7981	0.5702	0.7456	0.6308
SVR	None	0.9152	0.3649	0.7548	0.6257
	CARS	0.9514	0.2709	0.9170	0.3651
	SPA	0.6378	0.7558	0.5641	0.8309
	UVE	0.8539	0.4848	0.7137	0.6582

ISSN: 1746-4811