Rick - one of the main reasons I was putting the pollen in the fridge was to dry it. As I was thinking through this, it wasn't clear how much dryer the fridge would be. I haven't seen a fridge with a moisture drain and it is not clear to me how it purges the excess moisture as it cools air down after you have opened and closed the door. Either way I believe the cool temps help enable longer pollen viability.
As for tetra vs. diploid pollen - I have heard that tetra pollen does not store well. As a result I stopped trying to store it for a few years but have since started again as I spoke with folks that do it successfully. I think it is a cultivar dependent thing and probably only shows if the viability of the pollen is really low to begin with?
