696535.fig.007
Figure 7: Scanning electron micrographs of roots of gram (Cicer arietinum) (a) control, (b) at 1 ppm with EDAX (c) and (d) and (e) at 2000 ppm with EDAX (f) and (g) of nano-ZnO treatment. The energy dispersive spectroscopy shows the Zn peaks obtained from points indicated by the arrow.