my bananas are mostly all in full sun.i used to have leaves that seem to stay hung up and rolled for a week at a time.
call this crazy... i furgure central ga. is is hot and dry.. unlike south florida or lousianna where it is at least humid. the watering system i have only waters the roots. i take my hose nozzle and put it to the top of the plant and mist the entire plant several times a day.the leaf usually comes out and unfurls the same day.
yep when its hot and dry i water it from the top and wet the leaves.. at least it stops the leaves from looking cooked or droopy.
i believe that the choking is caused by extreme heat or cold conditions.
also i may pull apart the last two unfurled leaves at the top of the plant holding the spear..(not advised).i only tug a little not using much force.