title: [Study on seedling techniques of Paris polyphylla var. yunnanensis].
abstract: OBJECTIVE
  To shorten the duration of seed germinating, improve seed emergence and eventurally to establish a practical method for seeding of Paris polyphylla var. yunnanensis seed.
  
  
  METHODS
  To study the effect of some factors (temperature, sowing time, covering-soil depth, plastic film ) on seed emergence of P. polyphylla var. yunnanensis.
  
  
  RESULTS
  The most suitable temperature for embryonic post-maturity and seed germinating is 18-20 degrees C. Paris seed could emerge in April when it was transfer to a low temperature 0-10 degrees C for 2-4 months after being treated under 18-20 degrees C for 3-4 months. For seed emergence, the best sowing time was before April. The suitable soil depth was about 1 cm. It is a better way to cover the seedling bed with black plastic film for improving the emergence percentage.
  
  
  CONCLUSIONS
  Above results provide seedling techniques of P. polyphylla var. yunnanensis.
authors.affiliation: The Research Institute of Alpine Economic Plant, Yunnan Academy of Agricultural Sciences, Lijiang 674100, China.
authors.forename: Cui
authors.initials: C
authors.lastname: Chen
authors.forename: Li-Yun
authors.initials: LY
authors.lastname: Yang
authors.forename: Li-Fen
authors.initials: LF
authors.lastname: Lv
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhao
authors.forename: Li-Chun
authors.initials: LC
authors.lastname: Yuan
mesh_terms: D000383:Agriculture / Q000379:methods; D018525:Germination; D019668:Liliaceae / Q000254:growth & development*; D010946:Plants, Medicinal / Q000254:growth & development*; D012621:Seasons; D036226:Seedlings / Q000254:growth & development*; D012639:Seeds / Q000254:growth & development; D012987:Soil; D013696:Temperature
chemical_list: D012987:Soil