What is the photoperiod?

I wrote: The photoperiod is the length of day.

Please tell me if this is correct, thanks

Photoperiod: a plants response to lenghths of daylight and darkness each dayy

thanks, but I think that photoperiod has two meanings. I don't think it's this one I'm looking for.

YOu have it correct, Sara. Actually, it is the length of the daylight a plant is exposed to.

oh, thank you bobpursley :-)

Yes, your answer is correct. The photoperiod refers to the duration of light and darkness in a 24-hour cycle. It is typically used to describe the length of daylight within a day. To determine the photoperiod, you can simply measure the time interval between sunrise and sunset.