TABLE 5.

Pearson’s correlation coefficients between soil properties and leaf physiological attributes.

	Urease	Invertase	AP	Available N	Available K	Available P	SOM
NR	0.47	0.68	–0.38	0.47	0.31	–0.01	0.06
GS	0.347	0.59	–0.63	0.40	0.87*	–0.54	0.20
SPS	–0.28	–0.39	0.87*	–0.17	–0.46	0.30	0.15
SS	0.44	0.78*	0.08	0.82*	0.73	–0.14	0.60
Soluble protein	0.60	0.70	–0.67	0.51	0.76*	–0.27	0.31
Soluble sugar	0.79*	0.80*	–0.15	0.65	0.80*	–0.00	0.55
Chlorophyll	0.58	0.62	–0.47	0.51	0.49	–0.31	0.70

*Correlation is significant at the 0.05 level (Two-tailed). AP, acid phosphatase; N, nitrogen; K, potassium; P, phosphorus; SOM, soil organic matter; NR, nitrate reductase; GS, glutamine synthetase; SS, sucrose synthase; SPS, sucrose phosphate synthase.