Identification of plant leaf phosphorus content at different growth stages based on hyperspectral reflectance

BMC Plant Biology

Table 2 Model performance on selected wavelengths for classification of the level of P treatment at five developmental stages obtained for the three studied species of plants

Plant species			Sugar beet				Celery				Strawberry
Model			BNN	LIBSVM	LOG	RF	BNN	LIBSVM	LOG	RF	BNN	LIBSVM	LOG	RF
I	Training set	%	98	84	91	100	98	91	100	100	86	79	68	100
	Training set	RMSE	0.12	0.28	0.18	0.15	0.12	0.21	0	0.12	0.19	0.32	0.31	0.1
	Validation set	%	55	45	50	65	75	60	80	80	80	60	55	70
	Validation set	RMSE	0.44	0.52	0.49	0.35	0.3	0.45	0.32	0.32	0.29	0.45	0.39	0.29
II	Training set	%	98	89	100	100	98	93	95	100	97	97	100	100
	Training set	RMSE	0.11	0.24	0	0.11	0.12	0.18	0.17	0.13	0.09	0.11	0	0.05
	Validation set	%	70	70	65	70	55	60	50	55	80	90	80	95
	Validation set	RMSE	0.37	0.39	0.42	0.29	0.39	0.45	0.48	0.34	0.26	0.22	0.31	0.16
III	Training set	%	95	86	100	100	100	91	100	100	98	77	82	100
	Training set	RMSE	0.13	0.26	0	0.12	0.06	0.22	0.01	0.11	0.15	0.34	0.22	0.09
	Validation set	%	65	60	40	75	80	95	55	80	100	85	80	95
	Validation set	RMSE	0.23	0.45	0.55	0.33	0.29	0.16	0.47	0.28	0.17	0.27	0.24	0.15
IV	Training set	%	100	93	100	100	100	97	100	100	100	100	100	100
	Training set	RMSE	0.07	0.19	0	0.11	0.05	0.11	0	0	0.02	0	0	0.01
	Validation set	%	55	85	55	90	80	75	65	85	100	100	95	100
	Validation set	RMSE	0.38	0.27	0.47	0.27	0.27	0.35	0.41	0.27	0.03	0	0.14	0.05
V	Training set	%	87	86	100	100	100	95	100	100	91	86	100	100
	Training set	RMSE	0.21	0.26	0	0.13	0.03	0.15	0	0	0.2	0.26	0	0.11
	Validation set	%	60	45	65	70	95	95	90	95	65	50	80	80
	Validation set	RMSE	0.37	0.52	0.41	0.35	0.15	0.16	0.22	0.16	0.34	0.5	0.32	0.3

ISSN: 1471-2229