How can stress change plants to sex?

If something happens to a plant to cause it stress, does change to a hermy.

hermie, growth stunting, higher male:female ratio

there are some that think too much stress will cause hermies and there are others that think it is pre-programmed in the plants genetics .
personally i think that if you take care not too stress your plants out too much then you are eliminating that possibility and what will be will be.

ganja grower420 said:

If something happens to a plant to cause it stress, does change to a hermy.

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This is a really confusing subject for many growers. Sex is determined by the plant's genes before the seed is even planted. However, some plants may have a tendency to have both male and female flowers, especially if subjected to certain types of stress. It's not very well understood why this happens. Some believe it's a built in self preservation mechanism. Cannabis is one of the few plant species that doesn't normally have both male and femal parts on the same plant. It could be an evolutionary throwback. It's also believed that certain environmental conditions can influence sex as well. The same thing is observed in alligators. Temps are believed to influence the sex of alligators while they are still in the egg.

Here is an interesting read about sex ratios:

http://en.wikipedia.org/wiki/Sex_ratio

does topping the plants would cause enough stress to change it?

ganja grower420 said:

does topping the plants would cause enough stress to change it?

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Probably not.