First get the girl out of the grow room then put a plastic bag over the plant with just a sllit for one branch to poke out. Seal the bag around that branch's stem then either shake the male over the exposed buds or if you've collected the pollen already use a roughed up Q-tip, tiny paint brush or anything else handy to dust a little pollen on the buds. Leave it sit overnight then spray water all over everything to knock out any loose pollen. Could put a plastic bag over the exposed branch but I doubt it really matters. Then take the big bag off and put her back in the light. Might want to tag that branch with a twist-tie or something especially if you do other branches with different pollen. I got 5 different crosses on one plant years back that way.
Should give the dusted branch a spritz too or loose pollen on that will get around as well. Don't take much. When harvesting your seeds don't include any that you may find elsewhere on the plant. Could be from a 'nanner on another plant.
If your seeds aren't ripe when the plant is, just harvest the rest of the plant and leave any pollinated branches on there until the seeds are busting out and ripe. If you want to flip back to veg that's OK too. Won't do anything to the seeds other than maybe make them ripen faster. About 3 weeks into flower is a good time to pollinate but later is fine as well.
Kali Mist male
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'Nanners hiding in a bud.
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Billions of potential seeds!
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You don't need the whole male plant to collect pollen. Just cut off a couple of branches or the top and stick it in a glass of water drooping over so the pollen falls onto some tin foil or parchment paper. Not plastic! Static will have it stuck on there. It the end of the stem closes over just nip off a bit. A single 60W equivalent CFL or LED on a 12/12 timer is enough and somewhere far away from the plants with no breezes at all. I've done them in cardboard boxes stuck in a closet.
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That dish at the bottom right is my 180µ dry sift screen. Fits in a SS catch pan. Endecotts lab sieve if anyone is into that. Works great for pollen or kief.
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Make sure to clean the pollen really good. A 200µ or smaller bubble bag/kief screen works fine. A really fine kitchen strainer should be good enough tho. You want it really dry so if all you have is rice then I'd warm it to 200 for a while in the oven to dry it right out. Put some in a jar you can seal, let it cool first then put your container of pollen in there for a few days to allow the moisture to be drawn out then seal the pollen up and plan on using it in the next 3 - 6 months. Refrigerating should help it stay viable longer. I have colour changing drying granules called
Drierite I use to desiccate things with.
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Go forth and pollinate!