title: [Effects of seeds irradiation with 60Cogamma-ray on shoot growth and physiological status of Carthamus tinctorius].
abstract: OBJECTIVE
  To provide the radiation-induced technical reference and theoretical basis for safflower and other medicinal plants.
  
  
  METHODS
  Seeds of Carthamus tinctorius were irradiated with 60Cogamma-ray, and germination rate of seeds, germination, seedling rate and seedling height, root length, fresh weight, root activity and peroxide catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) activity were determined.
  
  
  CONCLUSIONS
  The LD50 of radiation dose is about 300 Gy, effects of seeds irradiation with 6Co-gamma-ray on shoot growth and physiological status of C. tinctorius are obtained.
authors.affiliation: Institute of Medicinal Plant Culture, Peking Union Medical College, Chinese Academy of Medical Scienes, Beijing 100193, China.
authors.forename: Shijie
authors.initials: S
authors.lastname: Niu
authors.forename: Wenrong
authors.initials: W
authors.lastname: Yan
authors.forename: Xia
authors.initials: X
authors.lastname: Wang
authors.forename: Xianen
authors.initials: X
authors.lastname: Li
mesh_terms: D031187:Carthamus tinctorius / Q000201:enzymology / Q000254:growth & development* / Q000528:radiation effects*; D002374:Catalase / Q000378:metabolism; D005720:Gamma Rays; D018525:Germination / Q000528:radiation effects; D009195:Peroxidase / Q000378:metabolism; D018520:Plant Shoots / Q000201:enzymology / Q000254:growth & development / Q000528:radiation effects; D012639:Seeds / Q000201:enzymology / Q000254:growth & development / Q000528:radiation effects
chemical_list: D002374:Catalase; D009195:Peroxidase