Fig. 7. Comparison of measured and predicted rates for seasonal (A) and daily (B) pollen production at four levels of male fertility (MF) for P3978 and P3925. Measured values are field data presented in Table 1 and Fig. 6. Predicted values are taken from the P_ind -generated curves in Fig. 6. Predicted seasonal pollen production is the sum of daily P_ind -curve values for the entire pollen shed period. Predicted daily pollen production is the P_ind -curve value corresponding to the daily measured value for each MF treatment.