Figure 2: Scanning electron microscopy of cross-sections of the second basal internode of plants grown at different plant densities.

Transverse sections of the second basal internode were obtained at 10 days after anthesis. The first two columns indicate SN23; the last two columns indicate WM8; first line, D1 treatment (75 plant m⁻²); second line, D2 treatment (225 plants m⁻²); third line, D3 treatment (375 plants m⁻²). The first and third columns reveal details of the sclerenchyma; the second and fourth columns show details of the vascular bundle. Scale bars: first and third columns, 50 μm; second and fourth columns, 10 μm.