cross the pollen of a regular photoperiod male plant with the flower of a femilized automatic,

Hello yes buddy if you make this croos you will have in F1 just regulat because auto features are recessive. Then you cross these F1 with auto and you have 50 % auto and 50 % regular. Finally you cross 2 F1 together to have 25 % auto, 50 % regular with auto features and 25 % pures regular. If you want to do this you need to have several male and female to not impoverish the genetic. Good luck buddy. Bye