Hell I stressed mine like my sisters red headed step child. I even cut off the air to one to show the others what to expect if they didn't tow the line. Sadly it didn't make it but the rest out preformed what I was expecting. I think plants reacting to stress is because of weak genetics or to be PC correct their genetics are focused on other strong points to help them reach their full potential. .  Autos sort of fit the bill there, since they suck and all. LOL