Fig. 1. Percentage of senescence as related to nodal position at 7 (squares), 26 (triangles), and 51 (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 1999: 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 15.9.