Conclusions
In high-yield maize cultivation under high-density conditions, appropriate population structure is essential, which includes higher plant
height, lower ear height, and smaller leaf angle above the ear. This
could improve the population density tolerance, as well as the appropriate LAI at silking, because an overly large LAI may not be beneficial
to dry matter production. In contrast, it would increase leaf respiration
at the bottom of plants. Sufficient dry matter accumulation guarantees
grain yield. Additionally, some indices of the high-yield maize population are given as follows: