Question

What are the effects of ethylene?

Answer 1

Ethylene:

1. Ethylene is a gaseous plant hormone.
2. It is regarded as a multifunctional phytohormone that regulates both growth and senescence.
3. It promotes or inhibits growth and senescence processes depending on its concentration, timing of application, and the plant species.
4. The main effects of ethylene are:
   1. It promotes fruit ripening.
   2. It accelerates the rate of respiration in climacteric fruits like peaches, plums, bananas, tomatoes, and so on.
   3. It induces seed germination by breaking seed and bud dormancy.
   4. Root hair development and root expansion are promoted.
   5. Promotion of root growth and root hair formation.
   6. It promotes senescence and abscission of leaves and flowers.