title: [Study on seed germination testing standardization of Codonopsis tangshen].
abstract: OBJECTIVE
  To study the influence of different factors (temperature, light and germinating beds) on seed germination of Codonopsis tangshen.
  
  
  METHODS
  The general germination method was applied.
  
  
  CONCLUSIONS
  The optimum seed germination conditions of C. tangshen were as follows: temperature 25 degrees C, light, germinating-beds top of paper (TP) or between of paper (BP). The first seedling--counting time was the 10th day after beginning the test; the final time was the 18th day. The test also showed that gibberellin notably increased the seed germination rate of C. tangshen.
authors.affiliation: Chongqing Academy of Chinese Materia, Chongqing 400065, China. sunnx2008@163.com
authors.forename: Nian-Xi
authors.initials: NX
authors.lastname: Sun
authors.forename: Rui
authors.initials: R
authors.lastname: Peng
authors.forename: Long-Yun
authors.initials: LY
authors.lastname: Li
authors.forename: Guo-Yue
authors.initials: GY
authors.lastname: Zhong
mesh_terms: D029745:Codonopsis / Q000187:drug effects / Q000254:growth & development* / Q000528:radiation effects; D018525:Germination / Q000187:drug effects / Q000528:radiation effects; D005875:Gibberellins / Q000494:pharmacology; D008027:Light; D010209:Paper; D012639:Seeds / Q000187:drug effects / Q000254:growth & development* / Q000528:radiation effects; D013696:Temperature; D013997:Time Factors
chemical_list: D005875:Gibberellins