title: [Impact of TDZ and NAA on adventitious bud induction and cluster bud multiplication in Tulipa edulis].
abstract: To explore the method of explants directly induced bud and establish the tissue culture system of mutiple shoot by means of direct organogenesis, core bud and daughter bulbs (the top of bud stem expanded to form daughter bulb) of T. edulis were used as explants and treated with thidiazuron (TDZ) and 1-naphthlcetic acid (NAA). The results showed that the optimal medium for bud inducted form core bud and daughter bulb were MS + TDZ 2.0 mg x L(-1) + NAA 4.0 mg x L(-1) and MS +TDZ 2.0 mg x L(-1) + NAA 2.0 mg x L(-1) respectively, both of them had a bud induction rate of 72.92%, 79.22%. The optimal medium for cluster buds multiplication was MS + TDZ 0.2 mg x L(-1) + NAA 0.2 mg x L(-1), and proliferation coefficient was 2.23. After proliferation, cluster buds rooting occurred on MS medium with IBA 1.0 mg x L(-1) and the rooting rate was 52.6%, three to five seedlings in each plant. Using core bud and daughter bulb of T. edulis, the optimum medium for adventitious bud directly inducted from daughter bulb, core bud and cluster bud multiplication were screened out and the tissue culture system of multiple shoot by means of direct organogenesis was established.
authors.forename: Li-Fang
authors.initials: LF
authors.lastname: Zhu
authors.forename: Chao
authors.initials: C
authors.lastname: Xu
authors.forename: Zai-Biao
authors.initials: ZB
authors.lastname: Zhu
authors.forename: He-Tong
authors.initials: HT
authors.lastname: Yang
authors.forename: Qiao-Sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Hong-jian
authors.initials: HJ
authors.lastname: Xu
authors.forename: Hong-Jian
authors.initials: HJ
authors.lastname: Ma
authors.forename: Gui-Hua
authors.initials: GH
authors.lastname: Zhao
mesh_terms: D009280:Naphthaleneacetic Acids / Q000494:pharmacology*; D010671:Phenylurea Compounds / Q000494:pharmacology*; D010937:Plant Growth Regulators / Q000494:pharmacology*; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D018547:Plant Stems / Q000187:drug effects / Q000254:growth & development; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development; D013830:Thiadiazoles / Q000494:pharmacology*; D046509:Tissue Culture Techniques; D031447:Tulipa / Q000187:drug effects* / Q000254:growth & development*
chemical_list: D009280:Naphthaleneacetic Acids; D010671:Phenylurea Compounds; D010937:Plant Growth Regulators; D013830:Thiadiazoles; C016785:thidiazuron; C034182:1-naphthaleneacetic acid