title: [Study on effect of seed vigor and agronomic characters of Cassia seeds implanted with low energy nitrogen ion beans].
abstract: OBJECTIVE
  To study the effect of low energy nitrogen ion implantation on seed germination and agronomic characters.
  
  
  METHODS
  Different doses of low energy nitrogen ion implantation were implanted into fresh Cassia seed embryos. Seed germination, seedling growth and field agronomic characters were observed.
  
  
  RESULTS
  The seeds after ion implantation showed significant reduction in germination energy, germination percentage and germination index, besides the significant decreasement in root length, fresh weight and vigor index of seedling. Plant height decreased despite the increase in grain size and grain weight.
  
  
  CONCLUSIONS
  The low energy nitrogen ion implantation have significant effect on Cassia seeds, and being of great significance on Cassia artificial cultivation.
authors.affiliation: College of Pharmacy, Anhui Xinhua University, Hefei 230088, China.
authors.forename: Mei
authors.initials: M
authors.lastname: Song
authors.forename: Xiang-Yang
authors.initials: XY
authors.lastname: Wang
mesh_terms: D000383:Agriculture / Q000379:methods; D002366:Cassia / Q000033:anatomy & histology / Q000254:growth & development*; D018525:Germination; D007477:Ions; D007478:Iontophoresis; D009584:Nitrogen / Q000494:pharmacology; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000254:growth & development*; D036226:Seedlings / Q000254:growth & development*; D012639:Seeds / Q000254:growth & development*
chemical_list: D007477:Ions; D009584:Nitrogen