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The measured and simulated grain yields used during calibration (solid symbols) and validation (open symbols). Panel a presents the results generated from ORYZA (v3) and panel b from ORYZA2000 (v2.13). The thick line is the 1:1 line, and the thin lines define the 15% variation in the range of measurements. The Cal and Val in the legend codes indicate the calibration and validation datasets, respectively, while the NFM, AWD, ARE and MVD are the codes for the four study cases (Table 1).
