Question

Cytokinin and ethylene have oppsite effect on:-

• A. Leaf senescence
• B. Elogation of stem
• C. Lateral swelling of stem
• D. Winter dormancy

Answer 1

The correct option is A Leaf senescence

Cytokinins are the plant hormones that are responsible for cell division and elongation, their help in the delay of leaf senescence as they transport nutrients to these parts. Ethylene is a gaseous hormone and is responsible for transverse growth as swelling of the stem, It hastens the senescence of leaves due to the evolution of ethylene gas.

So, the correct option is 'Leaf senescence'.