In SDP (Short Day Plants),flowering does not | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In $SDP$ (Short Day Plants),the critical dark period is essential for flowering. If the dark period is interrupted by a flash of red light,the con

Vedclass · Accepted Answer

The dark period is interrupted by a flash of red light.

Vedclass · Answer

(A) In $SDP$ (Short Day Plants),the critical dark period is essential for flowering. If the dark period is interrupted by a flash of red light,the conversion of $P_{fr}$ (active form) inhibits flowering. However,if this red light flash is immediately followed by a flash of far-red light,the $P_{fr}$ is converted back to $P_r$ (inactive form),effectively nullifying the effect of the red light and allowing flowering to occur. Therefore,flowering does not occur when the dark period is interrupted by red light or a sequence that ends in red light (which maintains the $P_{fr}$ level). Option $A$ describes a condition where the final exposure is red light,which inhibits flowering in $SDP$.

In $SDP$ (Short Day Plants),flowering does not occur when:

Similar Questions

Assertion: Photomodulation of flowering is a phytochrome regulated process.
Reason: Active form of phytochrome $(P_{FR})$ directly induces floral induction in shoot buds.

Write a short note on vernalisation.

Vernalisation can be reversed by

Explain the role of light in flowering.

Vedclass Test Series

Exam Paper Generator

Online Exam Module