A short-day plant was exposed to alternating | vedclass

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

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Flowering would occur

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(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?

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