A certain plant growth regulator 'X' is known to promote internode elongation just prior to flowering in rosette plants like cabbage. Which of the following is another physiological effect or commercial application of the same plant growth regulator 'X'?

Step-by-step solution

The plant growth regulator 'X' that promotes internode elongation just prior to flowering (a phenomenon known as bolting) in rosette plants like cabbage is Gibberellin. Gibberellins have several other commercial applications, one of which is speeding up the malting process in the brewing industry (specifically GA ₃ ). Ethylene promotes rapid internode or petiole elongation in deep water rice plants and also promotes root growth and root hair formation. Auxins are widely used to induce parthenocarpy in tomatoes. Ans