Question

Abscission of fruits is prevented by

• A. ABA
• B. Ethylene
• C. Cytokinin
• D. IBA

Answer 1

The correct option is D IBA

IBA is a synthetic auxin used by horticulturists for the prevention of abscission of fruits. Shedding of ripe fruits from the stem is called abscission. Generally, a layer of tissue is formed at the base of the organ. This layer of tissue is called abscission zone. The abscission zone does not form when the concentration of auxin is high.

So, the correct answer is 'IBA'.