You mean apical meristem is the best micro explant to get a rooting plantlet? In general right?
But more in general as I understand it you would need to be ultra precise in your cut, probably needing a microscope.
Not sure about Salvia. I still think it would be doing propagation with SD the unnecessarily hard way unless it's either for practice or because you are losing your plant(s) to something, idk? Also it doesn't seem like a representive plant necessarily since it is a bit of an unusual species in how it propagates in nature apparently mostly by cloning itself basically.
So what i wonder is if it is good practice to see if you can get a good callus culture from it, if it can root rather easily. Would it not root even if you don't make an accurate cut?
Thanks for your answer, nobody, and sorry if i am beating any horses