I have just started messing around with colloidal silver.
My tiny veg room is now a fem seed crop room.
My plan (haven't tried this yet, as soon as I pick the current plants):
I get two clones from the same mom and one for a cross. Let's say 2 Double Blueberrys and a C99
Once the clones are established I start spraying one. (I use Tiresias Mist, you can get it at hydro stores or on ebay for about $20)
I spray it once a day under 18/6 for a week. Then I pull the other two clones out and put them in a different veg area.
I continue spraying the first DBB clone for another 10-14 days. The other two clones then come back to bunk with the shemale DBB clone.
The plant that gets sprayed will be a bit stunted. By giving it a 2 week head start on 12/12 the pollen sacks have time to develop and be ready to pollinate the girls when they are ready to take it. The DBB clones will produce basically clones of the mom in seed form. The crosses will be saved for later. (I assume crosses will go 50% mixed, 25% tend towards the male, 25% tends toward the female. I don't know, from observation, I think the male shows up more in the crosses.)
I did this with great success with Autos (don't hate, it was in a shed that got over 100 degrees this Summer, regular plants would not have survived). I have thousands of fem auto seeds. They are good for my non-green thumb friends.
I had limited success trying to self a Banana Kush. I ended up with more Banana Kush x Blue Dream fem seeds.
Selfing a plant is a different story, but I have a plan for that.
You spray one branch twice a day on the bottom a week before 12/12 and a week after you flip.
Pick the pollen before it opens and get it out of there, then selectively apply it to some lower branches.
When you pick the plant let the pollinated branches go longer to develop the seeds.
This is all theory for me, I am working on it.
time for bong hits and work