C	Control
DAT	Day after treatment
FDR	False discovery rate
KEGG	Kyoto Encyclopedia of Genes and Genomes
OPLS-DA	Orthogonal projections to latent structures-discriminate analysis
PCA	Principal component analysis
SPAD	Soil and plant analyzer development
T	Girdling treatment
UPLCQ-TOF/MS	Ultra-high performance liquid chromatography-quadrupole time-of-Flight mass spectrometry
VIP	Variable important in projection