R. chrysanthum	Rhododendron chrysanthum Pall.
ABA	Abscisic acid
ANOVA	Analysis of variances
UPLC-MS/MS	Ultra-performance liquid chromatography tandem mass spectrometry
MWDB	Metware database
Q-value	Adjusted p value
UV-B	Ultraviolet radiation b
PAR	Photosynthetic active radiation
DMS	Differential metabolites
DFs	Different flavonoids
DEGs	Differentially expressed genes
PSII	Photosystem II
Fo	Minimal fluorescence
PQ	Plastoquinone
QA	The primary quinone acceptor
QB	The secondary quinone acceptor
OEC	Oxygen evolving complex
GO	Gene Ontology
KEGG	Kyoto Encyclopedia of Genes and Genomes
H2O2	Hydrogen peroxide
OPLS-DA	Orthogonal partial least squares discriminant analysis
FC	Fold change
VIP	Variable important in projection
FPKM	Transcript fragments per kilobase per million mapped reads
E5.5.1.6	Chalcone isomerase
C12RT1	Flavanone 7-O-glucoside 2″-O-beta-L-rhamnosyltransferase
DFR	Dihydroflavonol 4-reductase
PGT1	Phlorizin synthase
TFs	Transcription factors