Question

Physiological effects of a phytohormone are given below

1. Cell division

2. Removal of apical dominance

3. Delay of senescence

4. Help in stomatal opening

Identify the phytohormone involved in the above processes

• A. Auxins
• B. Gibberellins
• C. Cytokinins
• D. Abscisic acid

Answer 1

The correct option is C Cytokinins

Cytokinins promote cell division and help in removal of apical dominance. They promote nutrient mobilization like That help in delay and leaf senescence and also induces stomatal opening by increasing K+ ion concentration in guard cells.