Table 6.

Statistics and information on artificial neural network models for number of shoots, SL, STN, Chl, and quality index of OHF and pyrodwarf rootstock during in vitro proliferation (training vs. testing values).

Rootstock	Statistics1	Number of shoots		SL		STN		Chl		Vitri
OHF		Training	Testing	Training	Testing	Training	Testing	Training	Testing	Training	Testing
	R2	0.95	0.94	0.83	0.85	0.94	0.97	0.93	0.94	0.96	0.97
	RMSE	0.32	0.29	0.43	0.42	4.54	3.08	1.75	1.63	1.05	0.99
	MBE	–0.0009	–0.025	–0.0002	0.007	0.0003	–0.075	0.00002	–0.182	–0.0002	–0.067
PYRODWARF
	R2	0.97	0.95	0.87	0.85	0.96	0.96	0.91	0.92	0.96	0.96
	RMSE	0.51	0.67	0.32	0.34	1.82	1.72	1.39	1.48	1.46	1.50
	MBE	0.00007	–0.05	0.0004	0.006	0.0002	–0.203	–0.0003	0.11	–0.0002	0.27