“Leveraging” my complete absence of knowledge on this subject…
I recently devised the technique described below in order to selectively pollinate a single branch on a Paralyzed Monster plant in early June. I harvested the branch that I pollinated and yesterday during a final trim I collected 36 nice looking seeds. The rest of the plant was seedless.
Here’s the plant before bagging, two stakes to keep the bag from crowding the rest of the plant.
My painfully naive bagging idea: just use a heavy duty (8mil) 50 gallon trashbag with a reinforced slot cut to allow a single branch to poke out. The entire setup is in the tub/shower for easy rinsing.
With that setup in place I dusted the hell out of the one little branch, then closed the shower curtain, closed the bathroom door and left Pollen and Pistil alone to get acquainted.
Next morning I used the spray bottle and then the shower to both spray down the plant and create a cloud of humid steam to deactivate the remaining pollen. Contact time before washdown was about 16 hours.
I removed the bag, put the plant back in the grow room and eight weeks later, collected a modest but satisfying handful of seeds. I only found one seed total from the other four plants sharing the grow room.
Admittedly this was a PITA process, but it worked and I could have put the bag over as many branches as desired and substituted different pollen on each session.
Seems ideal for a small seed run. Anyone else done it this way?
Fire Away ye Wizards of Weed,
-Grouchy
PS, this thread has a bunch of helpful ideas: