Photoperiodism

The site of perception of photoperiod is

Photoperiods in humans are believed to be perceived by

Photoperiods are believed to be perceived by

Photoperiodic stimulus is picked up by

Photoperiodic induction can be produced

Photoperiods are believed to be perceived by

Photoperiodic stimulus is received by

The plants requiring short photoperiods for floral initiation and long photoperiods for blossoming are known as

The plants requiring short photoperiods for floral initiation and long photoperiods for blossoming are known as