Table 2.

Correlation coefficients of the first four principal components (PC1, PC2, PC3, PC4) resulting from Principal Component Analysis (PCA) for different physiological and production variables.

Variables	cp1	cp2	cp3	cp4
HFW Hypocotyl Fresh Weight (g)	0,9	0,16	-0,34	-0,05
LFW Leaf Fresh Weight (g)	0,39	0,58	0,55	-0,3
HMD Hypocotyl Dry Mass (g)	0,84	0,18	-0,46	-0,15
LMD Leaf Dry Mass (g)	0,23	0,71	0,53	-0,12
FvFm Maximum Quantum Yield of PSII (Fv/Fm)	0,04	0,31	-0,19	0,88
Y(II) Effective Quantum Yield of PSII	0,65	-0,63	0,30	0,14
NPQ Non-Photochemical Quenching	-0,65	0,60	-0,33	-0,09
qP Photochemical Quenching Coefficient	0,51	-0,59	0,38	-0,42
ETR Electron Transport Rate)	0,51	-0,63	0,35	0,35
Chla Chlorophyll $a (\mu g g^{-1}FW)$	0,17	0,59	-0,42	-0,10
Chlb Chlorophyll $b (\mu g g^{-1}FW)$	-0,19	0,12	0,74	0,11
Cart Carotenoids $(\mu g g^{-1}FW)$	0,17	-0,77	-0,06	-0,09
TDM Total Dry Mass (g)	0,81	0,50	-0,09	-0,18
EnE Energy Efficiency (g/W DM)	0,90	0,08	-0,31	-0,01
CTLA Total Leaf Area ( ${\text{cm}}^2$ )	0,32	0,61	0,53	0,24
CALA Average Leaf Area ( ${\text{cm}}^2$ )	0,41	0,56	0,30	0,18
CHL Hypocotyl Length (cm)	0,80	-0,15	-0,16	0,27
Eigenvalue	5,559	4,412	2,643	1,455
Variance (%)	32,70%	25,95%	15,55%	8,56%
Cumulative Variance (%)	32,70%	58,65%	74,20%	82,76%

The bold acronyms correspond to the physiological and production variables evaluated in the experiment, indicating their respective correlation coefficients for the four main principal components (PC1, PC2, PC3, and PC4).