Table 1.

Shoot and root growth of quinoa plants exposed to various concentrations of cadmium and lead under hydroponic conditions.

Treatments (µM)	Shoot Length (cm)	Root Length (cm)	Shoot Dry Weight (g plant−1)	Root Dry Weight (g plant−1)
Control	18.0 ± 0.60 a	23 ± 0.5 a	0.34 ± 0.01 a	0.32 ± 0.02 a
Cd 50	14.0 ± 0.23 c	18 ± 0.8 c	0.26 ± 0.008 b	0.26 ± 0.008 b
Cd 100	12.0 ± 0.50 d	15 ± 0.7 d	0.21 ± 0.01 c	0.22 ± 0.01 c
Pb 250	16.0 ± 0.40 b	20 ± 0.5 b	0.30 ± 0.013 ab	0.30 ± 0.012 ab
Pb 500	13.0 ± 0.30 cd	17 ± 0.4 c	0.26 ± 0.005 b	0.25 ± 0.008 b
Cd 50 + Pb 250	12.0 ± 0.50 d	17 ± 0.8 c	0.24 ± 0.01 bc	0.24 ± 0.015 bc
Cd 100 + Pb 250	10.5 ± 0.20 e	13 ± 0.5 de	0.18 ± 0.008 cd	0.18 ± 0.012 d
Cd 50 + Pb 500	9.0 ± 0.30 f	12 ± 0.4 e	0.16 ± 0.01 d	0.19 ± 0.008 d
Cd 100 + Pb 500	7.0 ± 0.40 g	9 ± 0.5 f	0.13 ± 0.009 e	0.14 ± 0.01 e

Data presented are the mean values (n = 4) followed by the standard error. Different letters in each column represent the significant difference at a 5% probability level.