In a nutshell, grow the plants and pick the male and female with the traits you desire. Ex. hartiness, flowering time, potency, size, etc. Let the fittest reproduce. Repeat this process until have the stable results you want. There's a sticky in the advanced grower section by fdd2blk that goes over the basics.
Depending on how serious the person might be about creating the very best they can they might want to research various strains that may have at least in part came from or are the same as what they will be working with. They might find that in some cases a male or a female of some certain strain is best at passing on certain characteristics, as in the case of someone using Black Widow (the original White Widow) for breeding and how the male is the better of the two for passing on the most favorable traits of Black Widow. They might also wish to pick very stable genetics to begin with to cut down on the numbers of phenotypes and if they go so far as to stabilize what they create it will be somewhat easier that way too.
How do you make feminized seeds? You use Colloidal Silver.
What is Colloidal Silver?
Colloidal Silver is pure, metallic silver (the element), in particles of 15 atoms or fewer, each with a positive electric charge and attached to a molecule of a simple protein. These electrically charged particles of silver are extremely small, usually ranging from about 0.001 to about 0.01 microns in diameter, and are suspended in deionized water. The force of the electric charge is stronger than the force of gravity, so the silver particles remain suspended.
In a nutshell how is Colloidal Silver made?
You simply pass a small electric current through distilled water using a pure silver electrode. That is essentially all there is to it. Contrary to popular belief, distilled water will conduct a small amount of electricity, allowing production of micro particulate colloidal silver.
What the hell does it have to do with cannabis?!?
We use Colloidal Silver (CS) for making FEMINIZED SEEDS, which I'm a big fan of after having nothing but great success from them since i started growing a few years ago
(The basic idea being you regularly spray CS on a female to force it to create bananas ie. pollen ... you then use that pollen to fertilize another female (or even itself, ie "selfing"), and the resulting seeds are feminized due to the pollen coming from a female instead of a male)
Also, there are some other substances that can be used to force male parts on female plants, including STS (silver theosulphate, which is silver nitrate + sodium theosulphate) and GA (giberillic acid), but CS is non-toxic, easy, safe and inexpensive to make at home, doesn't require a DEA request form, and isn't a controlled substance.
Csilver is available from your local chemist (in low parts-per-million though), and is drank for good health (the silver helps kill bacteria etc). But its PPM is too low for what we intend to use it for - feminized seeds! So we need to make our own with a higher PPM ... no problems, we simply allow the electrical current to flow through the silver for a longer duration
TO MAKE A COLLOIDAL SILVER GENERATOR ...
You will need: a 9V power adapter that outputs DC, two alligator clips, a soldering iron + solder. (If you don't have soldering iron you can simply wrap the wire around the alligator clip base in a coil and that will suffice, but you'll get better contact if you solder it).
- Get a power adapter that has an output of 9V DC 600mA or thereabouts. Output must be DC, and 9V/600mA seems optimal from what I've read and been told
- Cut the end off and discard
- Split the main wire into its two smaller sub-wires (no need to pull them apart all the way though). Don't worry, we don't need to know which is positive/negative.
- Use wire-cutters to remove the plastic shielding/insulation to expose the actual metal wires, about 1 inch is enough
- Solder the wires onto alligator clips ($0.50ea from your local electronics store)
If you don't have alligator clips Haps suggested a good alternative - drill a hole into each coin and coil the wire around that instead.
TO MAKE COLLOIDAL SILVER ...
- Get some distilled water. Do not use any other type of water due to impurities. At your supermarket you may find distilled water next to spring water, but it may also be in the ironing products isle as it is commonly used for steam irons.
- Attach each alligator clip to a chunk of PURE 999 or 9999 SILVER
- Make sure each coin is half-dunked in the water, but that the alligator clips themselves aren't touching the water, then turn on your generator and leave it for about 7 hours.
The end result: the electrolysis causes microscopic silver particles to be suspended in the water (= colloidal silver aka CS). The rig basically looks like this when in use (the only thing in contact with the water is the silver, not the alligator clips or anything else):
It's also recommended you use an airpump with a clean (not used for anything else) airstone to help keep the water moving.
Also you don't want to leave the CS generator running TOO long or the silver particles in the water start getting too large - ~8 hours should be plenty.
USING COLLOIDAL SILVER TO MAKE FEMINIZED SEEDS ...
Start spraying your target plant with CS just before you send it into 12/12 flowering, and keep spraying every few days. I won't go into details, but the CS causes the female to produce male flowers/pollen.
Collect that pollen, and use it to pollinate another female (you can pollinate the same female that you CS'd (aka "self'ing") and indeed you may have to if you have a clone-only strain, although that may lead to more hermaphroditic traits, but I wont go into details on that). Anyway, because you've pollinated a plant with pollen from a female, the pollen can only create female seeds.
There's obviously a lot more to it than that but hopefully this brief explanation will help people understand the basic just of it