Flash of light in dark inhibits flowering in

SDP

LDP

LSDP

DNP

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Short day plants (SDP) are those plants that begin flowering when the days are shorter than their critical day length. They require long period of darkness and short period of light to flower. Flash of light in dark thus inhibits flowering in SDP. Long day plants (LDP) are those plants that begin flowering when the days are longer than their critical day length. They will flower when they are exposed to short period of darkness and long period of light. Day neutral plants (DNP) do not depend upon the amount of darkness or daylight hours.

So, the correct answer is 'SDP'

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