Board Thread:FarmVille (game discussion)/@comment-25087687-20140621035140/@comment-3474542-20140626024937

Generally speaking, because super crops give regular bushels, you can use the "Super ..." version for crafting.

However, you need to check each individual quest for whether you must use a specific crop, or can use a generic (alternative) crop, to fulfill a quest. Quests will either specify the crop, or have a small question mark icon that you can click/hover to see some of the allowed alternatives.