Question

In chemically induced (artificial) parthenocarpy, hormones are applied by which method?

Options

• Injecting hormones into the ovary

• Spraying hormones on unpollinated flowers

• Soaking seeds in hormone solution

• Applying hormones to the root system

Answer 1

In chemically induced (artificial) parthenocarpy, plant hormones such as auxins (IAA, NAA), gibberellins, or cytokinins are sprayed on unpollinated flowers. This external hormonal application triggers fruit development without fertilisation, as in tomato, seedless grapes, and citrus.