Table 4.

Correlation analysis between photosynthetic parameters.

	N	RC/ CSO	TRO/ ABS	ETO/ TRO	ABS/RC	PI ABS	REO/ ETO	VPSI	VPSII- PSI	L 1	L 2	Pn
N		−0.46	−0.70	−0.92 **	0.74*	-0.94 **	−0.76 *	−0.10	−0.01	−0.37	−0.61	−0.87 **
RC/ CSO	−0.99 **		0.94 **	0.22	−0.86 **	0.65	0.90 **	0.91 **	0.87 **	0.94 **	0.97 **	0.70
TRO/ ABS	−0.24	0.22		0.52	−0.93 **	0.82*	0.99 **	0.76*	0.70	0.88 **	0.98 **	0.88 **
ETO/ TRO	-0.88 **	0.88 **	0.55		-0.58	0.84 **	0.61	0.16	0.24	0.09	0.39	0.78*
ABS/ RC	0.16	−0.17	−0.96 **	−0.53		−0.90 **	−0.96**	-0.65	−0.58	−0.77 *	−0.88 **	-0.78*
PIABS	−0.84 **	0.85 **	0.64	0.97 **	-0.64		0.89 **	0.31	0.22	0.52	0.74*	0.86 **
REO/ ETO	0.18	0.17	0.87 **	0.22	−0.92 **	0.34		0.68	0.61	0.81*	0.95 **	0.89 **
VPSI	−0.88 **	0.88 **	0.43	0.95 **	−0.44	0.94 **	0.17		0.99 **	0.94 **	0.82*	0.41
VPSII- PSI	−0.91 **	0.90 **	0.47	0.91 **	−0.44	0.94 **	0.16	0.97 **		0.90 **	0.76*	0.32
L 1	−0.44	0.48	0.49	0.59	−0.61	0.70	0.52	0.74 *	0.71 *		0.91 **	0.63
L 2	−0.27	0.30	0.76*	0.57	−0.86 **	0.69	0.81*	0.64	0.62	0.91 **		0.84 **
Pn	−0.66	0.69	0.64	0.85 **	−0.71*	0.93 **	0.50	0.88 **	0.87 **	0.89 **	0.86 **

Note: Correlation coefficients listed in lower triangle and upper triangle were determined from 2020 and 2019 data, respectively. *, ** indicate significant at the 0.05 and 0.01 levels, respectively.