Which of the following is not a function of gibberellic acid?

Gibberellins were first discovered in Japan when rice plants were suffering from bakane (the foolish seedling disease) caused by a fungus $Gibberella$ $fujikuroi$.
$(a)$ Give two functions of this phytohormone.
$(b)$ Which property of Gibberellin caused foolish seedling disease in rice?

Cell elongation in the internodal region takes place due to

The hormone involved in the metabolism of food material in cereal grain during germination is

Gibberellin was first extracted from

Application of which hormone causes the production of male flowers on female plants?