Originally Posted by WHIPEDMEAT
if those are really old, try to get gibberelic acid, to boost them
My questions then would be "which one(s)?" and in "what concentration?" Wikipedia says that there are some 150 different variants. I would imagine that some are natural and that some are synthetic. It would be surprising to me if there wasn't some sort of interaction, agnostic on some cases antagonistic in others.
The reason that I mentioned kelp is that it is a rich source of plant growth hormones.
https://www.researchgate.net/publication/225338767_Seaweed_Extracts_as_ Biostimulants_of_Plant_Growth_ and_Development
I wonder if the hormonal treatment would negate the necessity of manually opening the seed; i.e. If the difficulty in the seed opening is due to the seeds' endogenous hormones having expired.
At any rate it has been my observation that difficult to germinate tropical seeds, that take a long time, are particularly vulnerable to microbial attack. As such a sterile medium seems more ideal than soil, a soilless medium, or the old fashioned paper towel method. The latter option also suffers from the fact that it is easy to wait a little too long, the root grows into the paper towel, and it is easy to damage the root removing it.
So in the now strictly hypothetical scenario where one or more of these ancient gems actually wakes up and sprouts, I wonder if a cutting would have the same likely lack of vigor as the parent plant. Any thoughts?
Thanks everyone for your interest and responses.