Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study

Table 5

Cd concentrations in different parts of different treatments (mg/kg). All values are mean ± SD (𝑛=3).

Organ	C0	C1	C2	C3	H0	H1	H2	H3
Root	0.326±0.015	0.612±0.039	0.439±0.016	0.505±0.031	0.339±0.013	0.509±0.019	0.445±0.016	0.444±0.014
Stem	0.139±0.012	0.108±0.009	0.072±0.007	0.173±0.015	0.128±0.012	0.127±0.011	0.087±0.008	0.168±0.015
Fruit	0.062±0.005	0.051±0.006	0.030±0.005	0.057±0.006	0.038±0.003	0.042±0.004	0.020±0.004	0.047±0.004
Lamina	0.217±0.035	0.335±0.016	0.392±0.036	0.463±0.037	0.213±0.022	0.275±0.015	0.427±0.046	0.294±0.037
Sheath	0.791±0.090	0.771±0.075	0.662±0.072	1.086±0.151	0.534±0.082	0.813±0.087	0.704±0.061	0.709±0.072
Leaf*	0.410±0.038	0.482±0.029	0.478±0.031	0.671±0.029	0.321±0.026	0.462±0.074	0.521±0.033	0.432±0.037

∗Cd concentration in leaf is calculated from the fomula as 𝐶_leaf=(𝑀_lamina×𝐶_lamina+𝑀_sheath×𝐶_sheath)/(𝑀_lamina+𝑀_sheath), 𝑀_lamina and 𝑀_sheath means the dry mass weight of lamina and sheath, 𝐶_lamina and 𝐶_sheath means the Cd concentration of lamina and sheath. The dry mass weight of leaf 𝑀_leaf=𝑀_lamina+𝑀_sheath.