response to photoperiod, blue light
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of the detection of a blue light photoperiod stimulus. Blue light is electromagnetic radiation with a wavelength of between 440 and 500nm.
GO:0009637
response to blue light
is_a
GO:0009648
photoperiodism
is_a