I was hoping someone from citrus zones would
answer but they have not. We have a tradition here on the Key Peninsula that the only thing we are allowed to throw out the car window is
apple cores. Because this is a good climate and soil for apples many of them grow so our rural roads are lined with
apple trees.
With apples the seeds have the best success when covered with leave as they naturally would rather than burred.
It may be the same with citrus.
The
permaculture principle is to observe your experimental planting, speculate on the outcome to plan future plantings.