Question

Parthenocarpic tomato fruits can be produced by-

• A. Treating the plants with phenylmercuric acetate
• B. Removing androecium of flowers before pollen grains are released
• C. Treating the plants with low concentrations of gibberellic acid and auxins
• D. Raising the plants from vernalized seeds

Answer 1

Answer: (C)

Treating the plants with low concentrations of gibberellic acid and auxins

Answer 2

Development of fruits without fertilization is called parthenocarpy and such fruits are called parthenocarpic fruits. Parthenocarpic fruits are seedless. A flower is emasculated and auxins are applied to the stigma of the flower, it forms a parthenocarpic fruit. For parthenocarpy induction by auxins, these should be applied after anthesis (first opening of flower) and by gibberellins, these should be applied earlier i.e., at anthesis.