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. 2013 May 7;8(5):e61932. doi: 10.1371/journal.pone.0061932

Figure 2. Lead concentration in shoots of H. incana growing on different polluted soils.

Figure 2

Seedlings were grown on sterile compost for 20 days and transferred for 2 months on 4 different soils containing various amounts of total lead (soil 1∶6972 mg.kg−1 DW, soil 2∶18626 mg.kg−1 DW, soil 3∶7531 mg.kg−1 DW and soil 4∶1577 mg.kg−1 DW; Table 1). Data are the average (± SE) of three independent measurements.