Obviously it is possible, otherwise you wouldn't have a male plant!
I personally wouldn't use rodelization as a breeding technique, you are basically breeding with plants that are prone to hermaphroditism.
Seeing as how there was only one mature seed may also suggest the pollen came from a male that you were not aware of, even tens of miles away, as pollen can travel extreme distances on air currents. Just goes to show that its all good in theory, but Mother Nature does not read books or forums!