Abbreviations	Meaning
NIRS	Near-infrared spectroscopy
DM	Dry matter
OC	Oil content
PCA	Principal component analysis
PLS	Partial least-squares
SNK	Student Newman–Keuls
SVD	Singular value decomposition
GAP	Gap difference method
RMS	Root mean squared
RMSi	Root mean squared for each NIRS spectra
RMSEC	Root mean squared error of calibration
RMSECV	Root mean square error of cross-validation
RMSEP	Root mean squared error of prediction
SEC	Standard error of calibration
SECV	Standard error of cross-validation
SEP	Standard error of prediction
LV	Latent variables in the PLS model