Question

Assertion (A): Ethylene stimulates growth in case of wounds and thus helps in wound healing. Reason (R): Ethylene causes triple response growth in plants.

• A. Both (A) and (R) are true and (R) is the correct explanation of
• B. Both (A) and (R) are true but (R) is not the correct explanation of
• C. (A) is true but (R) is false
• D. (A) is false but (R) is true

Answer 1

Answer: (B)

Ethylene is the only gaseous natural plant growth regulator. It inhibits stem elongation and stimulates its transverse expansion. It accelerates abscission of leaves, flowers and fruits. It stimulates growth in case of wound and thus helps in wound healing.