title: [Plant traits and quality evaluation of different cultivation forms of Isatis].
abstract: OBJECTIVE
  To lay a foundation for the study on good variety selection of Isatis indigotica, comparison of plant traits and quality evaluation of Isatis germplasm resources from different production area was conducted.
  
  
  METHODS
  Field cultivation and randomized block experiment were adopted to compare those plant traits of leaf, root, silique and seed of Isatis from different production area and the content of R,S-goitrin and polysaccharide in the root was determined.
  
  
  RESULTS
  Different cultivation forms of Isatis had significant difference from each other in leaf, root, silique and seed, content of R,S-goitrin and polysaccharide in the root were also different. R,S-goitrin content in Isatis of Chinese cabbage leaf type ( production area: Yunnan ) was comparative higher, 0.59% , while polysaccharide content in autotetraploid Isatis was comparative higher, 8.68%.
  
  
  CONCLUSIONS
  According to the plant traits, Isatis were classified into three types: Chinese cabbage leaf type, cabbage leaf type and mustard leaf type, of which R,S-goitrin content in Chinese cabbage leaf type (production area: Yunnan) was comparative higher, while polysaccharide content in autotetraploid Isatis was comparative higher.
authors.affiliation: College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. 2009104152@njau.edu.cn
authors.forename: Chunhong
authors.initials: C
authors.lastname: Luo
authors.forename: Kangcai
authors.initials: K
authors.lastname: Wang
authors.forename: Tonggen
authors.initials: T
authors.lastname: Li
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Liu
authors.forename: Lisi
authors.initials: L
authors.lastname: Zou
mesh_terms: D002681:China; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D031219:Isatis / Q000737:chemistry* / Q000254:growth & development*; D010641:Phenotype; D018515:Plant Leaves / Q000737:chemistry / Q000254:growth & development; D018517:Plant Roots / Q000737:chemistry / Q000254:growth & development; D012639:Seeds / Q000737:chemistry / Q000254:growth & development
chemical_list: D004365:Drugs, Chinese Herbal