Fig. 1. Measurements (symbols) and simulations (lines) for the experiments in 2000. Two treatments were applied: early cutting (+,—) and late cutting (o, ^___). Eight variables were measured and simulated: aboveground biomass (g dry matter m^–2), leaf area index (LAI) (m² leaf m^–2 ground), water-soluble carbohydrate concentration (g CH₂O g^–1 aboveground dry matter), tiller density (no. m^–2), leaf elongation rate (m d^–1 tiller ^–1), number of elongating leaves (no. tiller^–1), leaf appearance rate (no. tiller^–1 d^–1), and specific leaf area (m² leaf g^–1 leaf dry matter). Simulations made use of default, uncalibrated parameter values.