Anet	Net CO2 assimilation rate
Car	Carotenoids
Chl	Chlorophyll
CNDVI	Combination of normalized difference vegetation index
CRI1	Carotenoid reflectance index 1
CRI2	Carotenoid reflectance index 2
G index	Greenness index
gs	Stomatal conductance
FRI	Flavonoid reflectance index
LDM	Leaf dry mass
LMR	Leaf mass ratio
LN	Leaf number
PRI	Photochemical reflectance index
RDM	Root dry mass
RShR	Root-to-shoot ratio
SD	Stem diameter
SDM	Stem dry mass
SIPI	Structure intensive pigment index
SPAD	Green intensity index
SRPI	Simple ratio pigment index
SSD	Secondary sexual dimorphism
TDM	Total plant dry mass
VPDair	Air vapor pressure deficit
WBI	Water band index
WS	Water-shortage conditions
WW	Well-watered conditions