Correct Answer: (c) Spraying hormones on flowers
Solution:Parthenocarpy is also desirable in fruit crops that may be difficult to pollinate or fertilize, such as tomato and summer squash. When sprayed on flowers, any of the plant hormones gibberellin, auxin and cytokinin could stimulate the development of parthenocarpic (seedless) fruit. This is termed artificial parthenocarpy.
