Foolish seedling disease of rice led to the discovery of

Options

(a) abscisic acid
(b) cytokinin
(c) 2,4-D
(d) gibberellin

Correct Answer:

gibberellin

Explanation:

The effect of gibberellins had been known in Japan since early 1800 where certain rice plants were found to suffer from bakane or bakanae (foolish seeding) disease. Such rice plants were thin, pale green, spindle-shaped, longer by 50% than the healthy plants, and were sterile.