Danny, You will probably have to use heat if there is a drastic bend. What I would do is bundle them and place them in a dry area to cure. After a month or so start using heat to straighten first the nodes and after they have cooled completely, the inter nodal areas. I like to wipe a little cooking oil where I apply heat to prevent scorching while straightening, and I use our gas range for the heat source.
You might try hand straightening a little , a couple of times a week and bundle or lay the canes on a flat surface between straightening sessions. By the time the month curing is up they will probably be fairly straight. Pat