There are 3 types of seeds growers are looking for when growing cannabis. Regular, Feminized and Autoflowering.
Regular, Photoperiod Seeds are created the most natural way by using Male and Female plants. These are the only types of seeds I like to produce myself.
Feminized Seeds are created by stressing a female plant out until she produces male pollen. The pollen from a stressed female plant often produces mostly female seeds but can also produce hermaphrodite seeds often as a result of the stressed genetics. Therefore we notice feminized seeds are stressed seeds and often lack the vigor and potency of regular seeds.
Autoflowering are created by crossing popular cuts with the Siberian Hemp Plant, also known as, Ruderalis. Due to the geographic origins of the Ruderalis plant it has evolved to automatically flower in a short season. These genetics by themselves have extremely low cannabinoid potency. The idea behind Autoflower is to create strains that will flower in a shorter time outdoors. In my opinion there is zero reason to grow an auto flower indoor. Further, there are very high potent Afghani and Indica photoperiod plants that also have short flowering times that should be utilized for cannabis breeding instead of Ruderalis in my opinion.