Fig. 2: Crop model validation on the field scale.
From: Breeding changes water use of winter wheat across Europe
Crop model validation results of total above ground dry matter biomass (t ha−1; a, d), leaf area index (b, e) and canopy transpiration rates (mm day−1; c, f) of the winter wheat cultivars Tommi (released 2002, a–c) and S. Dickkopf (released 1895, d–f). Lines indicate model simulation results, points with indicate mean observations of the respective parameters with standard deviations, measured in the year 2023. Metrics of model fit presented are root mean square error (RMSE), relative root mean square error (rRMSE), Willmott’s index of agreement (d-Index), mean absolute Error (MAE).
