Mikhail Khristoforovich Chailakhyan (Armenian: Միքայել Քրիստափորի Չայլախյան, Russian: Михаи́л Христофо́рович Чайлахя́н; 1902–1991) was a Soviet Armenian scientist who is widely known for proposing the existence of a universal plant hormone that is involved in flowering.
[1] He named this hormone florigen in 1936.
[2] His studies included the mechanisms of flowering, tuberization and sex expression in plants.
His pioneer work included the agricultural applications of phytohormones and synthetic analogs.
[3]