title: [Effect of improving light intensity on physio-biochemistry of Panax ginseng].
abstract: OBJECTIVE
  To provide the basis for improving ginseng production by exploring the difference of physio-biochemistry of Panax ginseng after increasing light intensity.
  
  
  METHODS
  Activities of superoxide dismutase( SOD), hydrogen peroxidase (CAT), and peroxydase (POD), as well as contents of malondialdehyde (MDA), chlorophyll a and b under full-light condition were compared with those in the shade in spring and autumn.
  
  
  RESULTS
  Activity of three kinds of enzymes in the anti-oxidation system (SOD,CAT and POD) were 27.52%, 41.96% and 37.7% higher than the shade group, respectively. The content of MDA was 11.23% lower. There had no obvious difference on the content of chlorophyll a, but chlorophyll b was decreased slightly.
  
  
  CONCLUSIONS
  Increasing the light intensity properly can improve the activities of enzyme protection system, and lower the content of MDA, which indicates that the increasing of light will provide a theoretic guide for high-production technique of Panax ginseng.
authors: Wu-lin
authors: WL
authors: Cao
authors: Qi
authors: Q
authors: Song
authors: Xiang-cai
authors: XC
authors: Meng
authors: Wei
authors: W
authors: Ma
authors: Hui
authors: H
authors: Sun
mesh_terms: D055598:Chemical Phenomena; D002734:Chlorophyll; D000077194:Chlorophyll A; D008027:Light; D008315:Malondialdehyde; D010084:Oxidation-Reduction; D005894:Panax; D010544:Peroxidases; D013482:Superoxide Dismutase
chemical_list: D002734:Chlorophyll; D008315:Malondialdehyde; C037184:chlorophyll b; D010544:Peroxidases; D013482:Superoxide Dismutase; D000077194:Chlorophyll A