Fig. 5. Relationship between maximum water content and (A) kernel growth rate, (B) duration of the grain‐filling period and (C) duration of the lag phase of Holdens LH198 × LH185 (closed symbols) and Dekalb DK611 (open symbols) maize plants. Differences in kernel weight and maximum water content were achieved by varying stand densities and pollination treatments to alter the post‐flowering source–sink ratio.