I mentioned epigenetics in response to my comment that a friend affected his plant and people saying the DNA could not change as an explanation for how the plant can change expression without changing the DNA. Some strains have different genes to others. I am sure you know this. Some plants hermie more often, some do not reveg as easily, some never flower as well again once they have flowered once, others do.
How the plant reacts to the environment depends on the plant.
One cut is not data, it is a lucky cut.
Please note, as should be obvious from my posts, that I am not claiming that epigenetics can affect the pollen. Re-read my posts and you will see this.
I have had the cut that I am talking about over 15 years old by the way. My friend had it a good 5 years before that. Many many things can happen in 20 years...
My point about pollen, which I have already explained is that everywhere has background radiation. Even low amounts of radiation over enough time can affect DNA. Dosing pollen with radiation is a well established method of inducing mutations.
For further reading on mutations in pollen caused by radiation, and to confirm for yourself that it does
Rédei & Koncz, 1992
Clark et al., 1993
Vizir et al., 1994
Bruggemann et al., 1996
Vizir & Mulligan, 1999
Why is this under discussion any more? All I said was that I would be interested to see if any germination happened and if it did, whether the plants were healthy, then the 'pollen is inviolate' crowd have dogpiled me it feels like.
I know what I am saying is valid, if you do not then read the list above, then you will too.