Table 1. TF of Pb and Cd of D. involucrata under individual and combined stress¹⁾.

Treatment level(mg·kg-1)		Single stress	Compound stress
Pb	CK	0.033 ± 0.004ab	0.033 ± 0.004a
	200	0.033 ± 0.009ab	0.005 ± 0.003b
	400	0.053 ± 0.030a	0.002 ± 0.001b
	600	0.025 ± 0.015b	0.003 ± 0.001b
	800	0.015 ± 0.005b	0.003 ± 0.000b
	1000	0.017 ± 0.007b	0.003 ± 0.001b
Cd	CK	0.461 ± 0.089a	0.461 ± 0.089a
	1	0.429 ± 0.354a	0.031 ± 0.003b
	5	0.008 ± 0.003b	0.007 ± 0.005b
	10	0.004 ± 0.001b	0.006 ± 0.006b
	20	0.004 ± 0.003b	0.011 ± 0.002b
	30	0.003 ± 0.002b	0.040±0.014b

1) Different letters within the same column indicate significance at 5%