Fig. 4. Relationship between final kernel weight and maximum water content of Holdens LH198 × LH185 (closed symbols) and Dekalb DK611 (open symbols) maize plants. Differences in kernel weight and water content were achieved by varying stand densities and pollination treatments in order to alter the post‐flowering source–sink ratio. Final kernel weight was calculated using a bi‐linear with plateau model, and maximum water content was determined as the maximum value measured within each treatment.