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Solution


Q.

Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants              [2025]
1 Ethylene  
2 Abscisic acid  
3 Gibberellin  
4 Cytokinin  

Ans.

(4)

Cytokinins help to overcome apical dominance. They promote nutrient mobilisation which helps in the delay of leaf senescence.