A short-day plant was exposed to alternating | vedclass

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

Question

(A) Short-day plants (SDPs) require a long uninterrupted dark period to flower.Phytochrome exists in two interconvertible forms: $P_r$ (red light abso

Vedclass · Accepted Answer

Flowering would occur

Vedclass · Answer

(A) Short-day plants (SDPs) require a long uninterrupted dark period to flower.Phytochrome exists in two interconvertible forms: $P_r$ (red light absorbing) and $P_{fr}$ (far-red light absorbing).$P_{fr}$ is the active form that inhibits flowering in short-day plants.Exposure to red light converts $P_r$ to $P_{fr}$,while exposure to far-red light converts $P_{fr}$ back to $P_r$.If the last treatment is far-red light,the phytochrome is converted to the $P_r$ form.Since $P_r$ does not inhibit flowering in short-day plants,the plant perceives the condition as a long night and flowering will occur.

$A$ short-day plant was exposed to alternating red-far red light treatments. What would happen if the last treatment was of far-red light?

Similar Questions

Define/Explain: Day-neutral plant.

Vernalization is done at

Photoperiodism is substituted by

$A$ pigment concerned with both floral induction and seed germination is

The phytochrome was discovered by

Vedclass Test Series

Exam Paper Generator

Online Exam Module