Fig. 3. Percentage of senescence as related to nodal position at 11 (squares), 34 (triangles), and 59 (circles) d after silking in ‘Pride 5’ (A, D, G), Pioneer 3902 (B, E, H), and Pioneer 3893 (C, F, I) grown at three plant population densities in 2001: 1 plant m^–2 (A, B, C), 3.5 plants m^–2 (D, E, F), and 12 plants m^–2 (G, H, I). The LSD (0.05) to compare leaves within each plant population density is 16.9.