Fig. 4. Comparison of residuals from regressions of observed vs. simulated values for days to anthesis for the CSM-CROPGRO-Soybean model in 28 experiments from 11 locations. A, relation with mean temperature during vegetative phase; B, relation with mean daylength during vegetative phase; C, relation with mean water stress indicator during reproductive phase; D, Relation with simulated days to anthesis.