Dioecy is proposed to have evolved from a hermaphrodite ancestor in angiosperms and is found in about 6 of all angiosperm plant species Renner and Ricklefs, 1995. Cannabis seeds ready to germinate in paper towels. The grower creates female genes by breeding two female cannabis plants together, shrinking the hermaphrodite genes to yield seeds that will produce female offspring.  Source: <a href=https://forum.resmihat.kz/viewtopic.php?f=4&t=1891044>https://forum.resmihat.kz/viewtopic.php?f=4&t=1891044</a>