Verna, if this was the plant you were worried about...I wouldn't fret too much. From here, that just looks like some physiological leaf curling. It happens as a result of some kind of environmental stress. i.e too much water, not enough water, heat, root damage (transplant shock), too much nitrogen etc...Those leaves might take on a sort of 'leathery' look in the coming days, again, it can look pretty weird but don't worry about it, they're still quite functional. That in and of itself shouldn't impact harvest yields much (or at all really)...but the root cause of the stress may (or it may not, that depends on what it is). So if you can determine and eliminate the stress factor(s) that would be great.
If they were curling in the other direction (viral), that would be pretty bad, but they are not. What you're seeing is pretty common when conditions aren't really great (I'm guessing most likely too much water and too much nitrogen, but that's just an assumption). Also, it seems like indeterminate types are more prone to this sort of things rather than determinate types.
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