Table 1. Classification performance of using independent test set.

Training set	Test set	10-fold cross validation on training set	Accuracy on test set
SpectraLib1	SpectraLib2	94.68 ± 0.34%	92.41%
SpectraLib2	SpectraLib1	97.05 ± 0.15%	93.29%

SpectraSet1 consisting of 28352 spectra extracted from Dataset1 (southern cultivars) and SpectraSet2 consisting of 61580 spectra extracted from Dataset2 (northern cultivars).