Q. Leaf abscission, fruit fall, and bud dormancy occurs by which phytohormone?
A) Auxin
B) Cytokinin
C) Gibberellins
D) Abscisic acid
Explanation
Abscisic acid also called stress hormone, is responsible for bud dormancy, seed dormancy, abscission, leaf senescence, etc.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.