$E$. Kurosawa discovered:

Which fungal pathogen is responsible for the 'foolish seedling' disease of rice?

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?

The chemical nature of gibberellins is

Gibberellic acid has been successfully used to induce flowering:

Which was discovered first?