Question

Match List I with List II:

LIST I (Photoperiodism)	LIST II (Explanation)
A. Short Day Plants (SDP)	I. Dark period period of 14-16 hours
B. PR	II. Absorbs light at 730-735nm
C. Long Day Plants (LDP)	III. Daylight of about 14-16 hours
D. PFR	IV. Absorbs light at 660-665nm

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (I), (B) - (III), (C) - (II), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

Focus on the light absorption properties of phytochromes and the photoperiod requirements of plants.

Answer 1

The Correct Option is D

- Short Day Plants (SDP) require long dark periods of 14–16 hours.
- PR (phytochrome red) absorbs light in the range of 660–665 nm.
- Long Day Plants (LDP) require long daylight periods of 14–16 hours.
- PFR (phytochrome far-red) absorbs light in th