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Fig. 4.7 Scanning electron microscopy images of rice root tips at the panicle-initiation growth
stage. Plants were grown in soil with (a) and (c) 400 mg kg−1 Cu on ambient plots, (b) and (d)
400 mg kg−1 Cu on FACE plots, (e) and (g) 2 mg kg−1 Cd on ambient plots, and (f) and (h) 2 mg
kg−1 Cd on FACE plots. (a), (b), (e), and (f) cross section; (c), (d), (g), and (h) longitudinal section