HORTICULTURE

Detailed explanation-1: -Fruit and leaf drop at early stages can be prevented by the application of the plant hormone or plant growth regulator (PGR) Auxin (Indole-3-acetic acid or IAA). They also promote abscission of mature and older leaves.

Detailed explanation-2: -Auxins is a plant hormone that is known to inhibit both premature leaf and fruit fall. Auxin postpones the abscission of young leaves and fruits.

Detailed explanation-3: -We should apply auxin exogenously at the base of petiole of leaves and at the base of stalk of fruits to prevent leaf fall and fruit drop in plants as auxin prevents the formation of abscission zone.