Words similar to photoperiod

Example sentences for: photoperiod

How can you use “photoperiod” in a sentence? Here are some example sentences to help you improve your vocabulary:

Rats were weaned at 21 days, and placed into LD (n = 16), SD (n = 17), or intermediate photoperiod (INT) (L12:D12; lights on at 0700; n = 17).
The LD group was designed explicitly as a control for any changes in husbandry, allowing us to test for changes in the two shorter photoperiod groups relative to the LD group.
Rats put into SD photoperiod treatment from the time of weaning exhibited an initial period of photoresponsiveness during the first third of the experiment (measurements in weeks 2-14).
Rats in SD photoperiod treatment from the time of weaning exhibited an initial period of lower body weight relative to LD controls during the first third of the experiment (measurements in weeks 2-14; P < 0.0001, F = 51.
The first is direct responsiveness to an environmental cue (or cues) for time of year, most commonly seasonal changes in photoperiod.