title: In vitro propagation and rhizome formation in Curcuma longa Linn.
abstract: Turmeric (Curcuma longa Linn.) which is cultivated by underground rhizomes is a slow propagating species. Multiplication and callus induction starting from the rhizome buds and shoot tips of C. longa in MS medium was carried out. A combination of naphthalene acetic acid (NAA; 1.0 mg/l) with kinetin (Kn; 1.0 mg/l) or NAA (1.0 mg/l) with 6-benzylaminopurine (BAP; 2.0 mg/l) was optimum for rapid clonal propagation of turmeric. A concentration of 2.5-3.0 mg/l of 2,4-dichlorophenoxy-acetic acid (2,4-D) was found to be optimum for callus induction. Regeneration of plantlets from a callus was successfully conducted in MS medium supplemented with standard growth hormones for multiplication at 25 +/- 2 degrees C under a 16 h photoperiod. These plantlets were successfully transferred to the field. Plantlets (4-month-old) were incubated in a medium containing different concentrations of sucrose supplemented with NAA (0.1 mg/l) and Kn (1.0 mg/l) at 27 +/- 2 degrees C under an 8 h photoperiod for induction of rhizomes. In vitro rhizome formation was observed in media containing 6 and 8% sucrose.
authors.affiliation: Department of Life Sciences, Manipur University, Imphal, India.
authors.forename: H
authors.initials: H
authors.lastname: Sunitibala
authors.forename: M
authors.initials: M
authors.lastname: Damayanti
authors.forename: G J
authors.initials: GJ
authors.lastname: Sharma
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000494:pharmacology; D001593:Benzyl Compounds; D046508:Culture Techniques / Q000379:methods*; D030024:Curcuma; D007210:Indoleacetic Acids / Q000494:pharmacology; D007701:Kinetin; D009280:Naphthaleneacetic Acids / Q000494:pharmacology; D010937:Plant Growth Regulators / Q000494:pharmacology; D018517:Plant Roots / Q000254:growth & development*; D011687:Purines
chemical_list: D001593:Benzyl Compounds; D007210:Indoleacetic Acids; D009280:Naphthaleneacetic Acids; D010937:Plant Growth Regulators; D011687:Purines; C034182:1-naphthaleneacetic acid; D000225:Adenine; C480551:benzylaminopurine; D007701:Kinetin