Plant Growth And Development Question 216
Question: Hormone causing stomatal closure is [Orissa JEE 2005]
Options:
A) GA
B) Kinetin
C) ABA
D) IBA
Show Answer
Answer:
Correct Answer: C
Solution:
Application of minute quantity of ABA to leaves reduces transpiration to a great extent through partial closure of stomata.
It thus conserves water and reduces the requirement of irrigation.