Sort of, your plants will all be either hermies or females(not as in all will be female or all will be hermie, although it is technically possible for it to happen). This method of making feminzed seeds is rather unstable.
Another way is to take a bunch of females and put them into 12/12, during the middle of the dark period run the lights for an hour of so. This will cause some/most of the plants to hermie, however it will also reveal to you if you have a "true female", a plant that cannot go hermie from any natural stress. Now get some colodial silver and apply it to said female, this will cause it to grow deformed pollen sacks, remove the pollen and pollinate itself with its own pollen. The seeds should be exact genetic copies of their mother.