Q. Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?
A) Ethylene
B) Abscisic acid
C) Gibberellin
D) Cytokinin
Explanation
[Solution by Claude - not from source] Cytokinins delay senescence by promoting nutrient mobilisation. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.