title: [Photosynthetic pigment contents of different germplasm of Rehmannia glutinosa and the relationship between pigments and leaf color].
abstract: OBJECTIVE
  To evaluate the germplasm of Rehmannia glutinosa on the basis of photosynthetic pigment contents (PPC).
  
  
  METHODS
  20 cultivars were planted on the same condition. On Oct. 23 and Sept. 25, 3 leaves per cultivar were collected on different plants, and 80 mg mesophyll was collected among upper lateral veins and was ground in 96% alcohol, and the supernatant was subjected to measure on a spectrophotometer (Angilent 8453).
  
  
  RESULTS
  The PPCs among cultivars were significantly different at a P < or = 0.01 level. The results of the measurements were similar. Chlolophyll a was the most abundant pigment, but varied to a great extent among different cultivars. 20 cultivars were divided into 9 homogeneous groups according to the contents of chlorophyll a by Duncan's multiple range test at P < or = 0.05. In addition, the content of chlorophyll a was closely related to leaf color. The cultivars with higher chlolophyll a had deep green leaves, and those with lower had yellow green or pale green leaves.
  
  
  CONCLUSIONS
  PPC was an inherent character and an important index for the germplasm evaluation of R. glutinosa.
authors.affiliation: School of Pharmaceutical Sciences, Shandong University, Jinan 250012, Shandong, China. x.s.wen@163.com
authors.forename: Xue-sen
authors.initials: XS
authors.lastname: Wen
authors.forename: Hong-xiang
authors.initials: HX
authors.lastname: Lou
authors.forename: Shi-lin
authors.initials: SL
authors.lastname: Yang
authors.forename: Xian-en
authors.initials: XE
authors.lastname: Li
authors.forename: Xiu-min
authors.initials: XM
authors.lastname: Cheng
authors.forename: Li-zhen
authors.initials: LZ
authors.lastname: Xu
authors.forename: Jun-hua
authors.initials: JH
authors.lastname: Zheng
mesh_terms: D002734:Chlorophyll / Q000032:analysis*; D003116:Color; D010788:Photosynthesis; D010860:Pigments, Biological; D018515:Plant Leaves / Q000737:chemistry / Q000254:growth & development; D010946:Plants, Medicinal / Q000737:chemistry / Q000254:growth & development*; D032267:Rehmannia / Q000737:chemistry / Q000254:growth & development*
chemical_list: D010860:Pigments, Biological; D002734:Chlorophyll