Table 2.

The correlation coefficient (r) between root and shoot metal concentration in T. qataranse (n = 5).

Shoot	Ba	Cd	Cr	Cu	Ni	Pb
Ba	0.50	−0.88	−0.71	−1.00*	−0.86	−0.50
Cd	−0.28	−0.95	−1.00*	−0.68	−0.96	0.28
Cr	n.a	n.a	n.a	n.a	n.a	n.a
Cu	−0.39	−0.91	−0.99*	−0.58	−0.93	0.39
Ni	−0.98*	0.21	−0.07	0.67	0.18	0.98*
Pb	0.79	0.60	0.80	0.12	0.63	−0.79

*Correlations are at 0.05 significance level.

n.a = Correlation data not applicable (No metal accumulation in the shoot).