Table 2.

Correlation significance of gas exchange measurements with LNC and Rubisco activity, under N stress conditions

	Pn	Gs	Ci	Rt
Correlation with LNC
Pearson r	0.9811	0.9822	0.9831	− 0.9777
P value	0.0189*	0.0178*	0.0169*	0.0223*
R2	0.9625	0.9647	0.9665	0.9559
Correlation with Rubisco activity
Pearson r	0.991	0.9913	0.9931	− 0.9881
P value	0.009**	0.0087**	0.0069**	0.0119*
R2	0.9821	0.9827	0.9862	0.9763

Significance at a 95% confidence interval and P-value summary is represented by asterisks

LNC leaf nitrogen content