title: [Effects of plant growth regulators on cutting propagation of Rosa laevigata].
abstract: OBJECTIVE
  To explore the optimal plant growth regulator and its suitable concentration for the cutting propagation of Rosa laevigata.
  
  
  METHODS
  The cuttings were dealt with 6 kinds of plant growth regulators (IAA,IBA, NAA, PP333, 2, 4-D and ABT) at different concentrations (100, 200 and 500 mg/L) for 50 seconds. After 30 days growth, by analysis of variance and multiple comparisons,the most suitable cutting propagation method for Rosa laevigata was found.
  
  
  RESULTS
  Under the same condition, different concentration of different kinds of plant growth regulators had different effects on cutting propagation of Rosa laevigata. Generally speaking,cuttings soaked with 200 mg/L PP333 for 50 seconds was the best,with the high multiple effectiveness index and average root number (12.42); Cuttings soaked with 200 mg/L IBA for 50 seconds also had significant effects, with the second high multiple effectiveness index and the highest survival rate (96.67%).
  
  
  CONCLUSIONS
  200 mg/L PP333 can promote cutting propagation of Rosa laevigata best.
authors: Long-yuan
authors: LY
authors: Liu
authors: Xuan-xuan
authors: XX
authors: Zheng
authors: Huan
authors: H
authors: Weng
authors: Su-ying
authors: SY
authors: Tian
mesh_terms: D003470:Culture Media; D010937:Plant Growth Regulators / Q000145:classification / Q000494:pharmacology*; D018517:Plant Roots / Q000033:anatomy & histology / Q000187:drug effects / Q000254:growth & development*; D018547:Plant Stems / Q000187:drug effects / Q000254:growth & development; D012098:Reproduction / Q000187:drug effects; D027826:Rosa / Q000033:anatomy & histology / Q000187:drug effects / Q000254:growth & development*; D046509:Tissue Culture Techniques / Q000379:methods
chemical_list: D003470:Culture Media; D010937:Plant Growth Regulators