The banana seed | The banana knowledge platform of the ProMusa network
You could try it, but the annoying thing about banana seeds is that they have an inner cuticle that is impervious to water. So you can soak them as long as you like they won't absorb water. (read the article from the link attached) The only way round it is either mechanically break that cuticle, which quite often results in mould growth - in my experience anyway; or to remove the embryo and grow in vitro. That is why freshness is key. If the seeds are fresh they will germinate, but of they go dormant then only very specific conditions will allow it to germinate. The question is - what are those conditions? I suspect it may have something to do with UV light.
By all means try.