As the title says, can you top tomato plants?

It depends what you want to accomplish by "topping." Tomato plants usually don't require this to get multiple stalks.

my dog toped mine it seemed to produce more fruit than the other two i had growing next to it once it caught back up

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Starting your seeds
Originally Posted by zoutekoffie
i dont have direct sunlight becouse of the clouds

You can top, fim, or scrog a tomato if you want, but like said above youll be staking and pretty much training.

What topping does is stop it from growing taller, so if you have space issues id go ahead and top it. And if you do chop off alot itll grow more/larger fruit as it stores the sugars in the roots it made, and now having less to feed itll have more sugars lying around. Tho with hydro im starting to wonder. I was told to chop off alot of my pepper flowers to get more peppers but didnt and EVERY flower made a full size pepper.

I toped a friends tomato plant and I cloned it on Monday. I have never cloned anything else before, but I figure its Friday now and the clone is looking good.

I tried supercropping on mine, but didnt work after a couple of days it got up again..

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http://www.rollitup.org/grow-journal...ml#post2568591

tomatoes clone pretty fast, both times ive cloned them ive gotten roots within 6 days

I think it would be ok for indeterminate plants to be topped off or cloned but for determinate bush-type type tomato plants like roma , I wouldn't bother. You could lose considerable yield topping or pruning those type of plants.