Plant Growth And Development Question 219
Question: Gibberellic acid induces flower [CBSE PMT 1997]
Options:
A) In some gymnospermic plants only
B) In long day plants under short day conditions
C) In short day plants under long day conditions
D) In day neutral plants under dark conditions
Show Answer
Answer:
Correct Answer: B
Solution:
When long day plant are grown under short day conditions the gibberellins are produced in insufficient quantities and flowering does not occur.
However if the plant is transferred to long day conditions or gibberellin solution is applied to leaves flowering occurs.
BETA
