Plant Growth And Development Question 17
Question: In short day plants (SDP) flowering is induced by [CBSE PMT 1992]
Options:
A) Long night
B) Photoperiod less than 12 hours
C) Photoperiod shorter than initial value and uninterrupted long night
D) Short photoperiod and interrupted long night
Show Answer
Answer:
Correct Answer: C
Solution:
In SDP the dark period is critical and must be continuous.
If this dark period is interrupted even with a brief exposure of red light, the short day plant will not flower.
BETA
