What is the action spectrum of photoperiodism | vedclass

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(C) The action spectrum of photoperiodism is primarily associated with the phytochrome pigment system.Plants contain two interconvertible forms of phy

Vedclass · Accepted Answer

$660$ and $730 \ nm$

Vedclass · Answer

(C) The action spectrum of photoperiodism is primarily associated with the phytochrome pigment system.Plants contain two interconvertible forms of phytochrome: $Pr$ (which absorbs red light at $660 \ nm$) and $Pfr$ (which absorbs far-red light at $730 \ nm$).These two forms act as a molecular switch to regulate various developmental processes,including flowering,in response to the duration of light and darkness.Therefore,the correct action spectrum corresponds to $660 \ nm$ and $730 \ nm$.

What is the action spectrum of photoperiodism?

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