concentration decreased by as much as 21% (151 to 119 mg Zn kg Dw from 0.025 to 6.0 mg CuSO x 5H o dma of MS medium) in roots and 9% (78.9 to 71.7 mg Zn kg DW from 0.025 to 5.0 mg Cuso. x 5H O dm of MS medium) in shoots(Figure 4). The calcium(Ca) content in roots and shoots showed a decreasing(0.025-5.0 mg CuSO H,0 dm with the increasing cu concentration in the growth medium(Fig. 5. The calcium concentration decreased by 28% to 4260 mg Ca kg! DW) from 0.025 to 5.0 mg Cuso. x 5H,0 drn of