Question

A farmer notices that storing ripe mangoes with unripe ones speeds up the ripening process. The phytohormone primarily responsible for this phenomenon is ______.

Options

• Auxins

• Cytokinins

• Gibberellins

• Ethylene

Answer 1

A farmer notices that storing ripe mangoes with unripe ones speeds up the ripening process. The phytohormone primarily responsible for this phenomenon is ethylene.

Explanation:

Ethylene is a gaseous plant hormone (phytohormone) that regulates the ripening of fruits. When ripe mangoes are stored with unripe ones, the ethylene gas released by the ripe fruits triggers and accelerates the ripening of nearby unripe fruits. Other hormones like auxins, cytokinins, and gibberellins help in growth and development but are not involved in fruit ripening. Hence, the hormone responsible is ethylene.