title: The influence of growth regulators absorbed by the root on sex expression in hemp plants.
abstract: Application, through the root system, of growth regulators to hemp (Cannabis sativa L.) plants having 2-3 pairs of visible leaves caused pronounced shifts of sex expression in the adult individuals. Treatment with gibberellic acid (25 mg/l) resulted in more than 80% of the plants being male, i.e. having staminate flowers (controls, ca. 30%). Treatment with 6-benzylaminopurine and with indole-3-acetic acid (in either case, 15 mg/l) resulted in all plants being either female (pistillate flowers) or intersexes (bisexual flowers); treatment with abscisic acid (10 mg/l) had a similar but somewhat less pronounced effect.
authors.affiliation: K.A. Timiryazev Institute of Plant Physiology, Academy of Sciences of USSR, Botanicheskaya ul. 35, 127273, Moscow, USSR.
authors.forename: M K
authors.initials: MK
authors.lastname: Chailakhyan
authors.forename: V N
authors.initials: VN
authors.lastname: Khryanin