I know you can collect and store orchid pollen. For long term storage, orchid pollen is put into sealed test tubes with a desiccant at the bottom and placed in a cool dry place (not frozen or refrigerated). It lasts for several years. For short term, Its usually folded up into a small piece of paper and stored someplace cool and dry. It lasts a month or so that way.
I don't see why it wouldn't work with corn or any other plant.
Daisy
