2) Citrus canopy leaf area index (LAI) was negatively
related to droplet deposition density, and open center
shape citrus trees could considerably increase the droplet
distribution, especially in the citrus central canopy.
Even though the CV of droplets density was larger and
the droplet distribution is not uniform, the open center
shape canopy may be more suitable for the UAV spraying.
But the standard and the unity of pruning for the open
center shape crown is still to be improved