Re: Making feminized seeds of my own auto strain "Lucky 13" using colloidal silver.
Yeah I guess I'm not fully understanding what your up to, because I thought you were spraying a Dinafem fem seed. If you're working on regular seeds also then yes you need to sex them first. The process goes a little different for fem, or regular seed types, and auto, and photoperiod seed types. Not that it won't work if you go into flower, and start spraying a bit later. Just that the best results scenarios all involve spraying the plants at the earliest time possible. Sexing is of course needed when sex is unknown. You don't want to assume you changed a plants sex, and find out later you have a real male, and have worked months making regular seeds, but early spraying is preferred when sex is already known, because of using fem seeds. Problems can be avoided by early spraying like plants developing sacs that don't open, and need to be crushed to obtain pollen. So a full reversal is more easily obtained by starting spraying even before sex is shown on seeds you know are female. This approach is problematic when doing a self pollination auto seed. The plant often is to small to spray only half. It needs to grow bigger so you can divide it into working sections, and spray, and not spray separate parts. A photoperiod fem seed should be cloned, and one of the two clones sprayed, and the other not sprayed, but used for making seeds. Because you know the sex of your clones the one sprayed can start treatments on, or before being flipped to 12/12.