Well my poor excuse of a BB in in a very poor excuse of a climate and not in a good spot at that. I plan to move it out to full sun next year and to use an impact sprinkler on everything so the stems develop stronger. There is no breeze here, just hot, hotter and record hot and no breeze, when there is a bit of wind or drop of rain everything falls down since the plants have developed with weak stems. Any bit of a windstorm or puts the power out for days or weeks (in town!!!!!) unbelievable they cannot deal with it here in the big city!!!!!!!
But I digress.
It was my understanding the 4n were induced with colchicine and that made them 4n and more fertile, but I have not heard how stable that is in the long-term. For instance many variegated plants revert back to the normal non variegated type under good growing conditions. Now that I am in a foul place to grow anything my variegated plants are staying that way for once. In propagation the new buds formed under favorable and fast conditions may revert.
I have also heard that since the induced tetraploids are poisoned to make them that way they grow slower (my old ones didn't seem to be any slower).
So I guess you will have to wait-or get a microscope and see if there is a stomate size difference. That was another way to tell and I cannot remember which is bigger (4n I think) since microscope work was NOT my favorite and I refused to do it on my own time, bad enough to do it for pay. And counting chromosomes was very tedious work. Now I can no longer see well enough for anything like that.
I think that information was back in the 90's in the NALS yearbooks.
