ColdRain- No, washing your hair on a daily basis alone will not cause you to produce more split ends. But washing your hair everyday means that you are likely using blow dryers and other styling tools on a more frequent basis. Using heat styling tools everyday will definitely cause split ends. It is best to wash your hair every 2 or 3 days to give your hair a break from constant styling.
However, washing your hair on a daily basis can cause it to become drier. You strip your hair of natural oils every time you wash your hair. These oils are needed to keep your hair moist and smooth.