What happens biologically to a short-day facultative plant that is a few weeks into its short day (flowering) photo period and is suddenly given a 24 hour period of light? Does anything change biologically after one day of long day (vegetative light) or  will it take several days?

If there is any biological change that is of concern what can one do to try and alleviate any negative affects?


https://en.wikipedia.org/wiki/Photoperiodism -