Question

Photoperiods are related to the duration of ____

Answer 1

The term Photoperiod refers to the

required time of exposure to sunlight

in a period of 24 hours

Indoor plants need 18 hours of light

and 6 hours of darkness.

These are categorised as following :-

1) long day plants & 2) short day plants

3) short-long day plant.

ex.LDP (Dian thus Avena) , SDP (cannabis, Oryza)