Auxins and Gibberellins — Prelims Questions

Which of the following statements regarding auxins is INCORRECT?

A gardener wants to induce parthenocarpy in tomatoes and promote rooting in rose cuttings. Which plant growth regulator(s) would be most suitable for these purposes, respectively?

Which of the following is a direct physiological effect of gibberellins?

The 'bakanae' (foolish seedling) disease of rice, which led to the discovery of gibberellins, is characterized by:

Which of the following synthetic auxins is widely used as a selective herbicide to kill broad-leaved weeds in monocotyledonous crops?

Which of the following processes is NOT primarily regulated by auxins?