I discovered this technique by chance with a supermarket coconut whilst probing the embryo with a scalpel. I accidentally nicked the embryo after opening the pore, and the coconut began to sprout a couple of days later.
That was over a year ago. I thought nothing more of it until recently, whilst pondering the 70 or so Lemurophoenix seeds I have in a germination box. These seeds are the best of the best (I had 100 seeds and 20 went bad early on). After nearly 5 months, just 6 have started to