A: Soyabean and sugarbeet flower when they ar | vedclass

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Question

(D) $1$. Soyabean is a Short Day Plant $(SDP)$,which requires a photoperiod shorter than the critical duration to flower.$2$. Sugarbeet is a Long Day

Vedclass · Accepted Answer

Both Assertion and Reason are incorrect.

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(D) $1$. Soyabean is a Short Day Plant $(SDP)$,which requires a photoperiod shorter than the critical duration to flower.$2$. Sugarbeet is a Long Day Plant $(LDP)$,which requires a photoperiod longer than the critical duration to flower. Therefore,the Assertion is incorrect because sugarbeet does not flower under short photoperiods.$3$. Most winter-flowering plants are Short Day Plants $(SDP)$,not $LDP$. Therefore,the Reason is also incorrect.$4$. Since both statements are factually wrong,the correct option is $D$.

$A$: Soyabean and sugarbeet flower when they are exposed to a photoperiod shorter than the critical period.
$R$: Most winter-flowering plants are $LDP$.

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$A$: Soyabean and sugarbeet flower when they are exposed to a photoperiod shorter than the critical period.$R$: Most winter-flowering plants are $LDP$.