Disclaimer: I posted this comment a few hours ago (and just deleted), but then I realized it was in reply to a post from Hemp, when I intended it to be to your post, @TestOfOath.
Hey, that’s a good idea - placing the cardboard under the plant to catch the falling pollen! I don’t know if you were taking a page from my book (I posted this technique in January), but if you were, I APPROVE!
Since I’m posting my comment again, I may as well add the change I made to my pollen collection method. Instead of letting the pollen fall straight onto the cardboard, I’m now bending the plant and adding mylar to the cardboard, which serves 3 purposes. Not only does it maximize the light dispersion, but it makes it MUCH easier to capture the falling pollen and gather the pollen when you harvest the plant. Here’s a few pics.
1st pic: Pre-mylar
2nd pic: Mylar; prior to bending the plant
3rd pic: Plant has been bent to make the natural pollen fall more efficiently onto the mylar
4th pic: Good evidence…