title: [Contrast of growth characteristics of different germplasm and correlation between morphologic and individual yield of Isatis indigotica].
abstract: OBJECTIVE
  To study the growth characteristics of different germplasm and analyze the correlation between morphologic and individual yield of Isatis indigotica.
  
  
  METHODS
  The planting samples were collected during the growth period, morphological characteristics and root yield per plant in 13 germplasm of I. indigotica from all over the country were determined by correlation and path analysis.
  
  
  RESULTS
  The growth characteristics of various I. indigotica germplasm were consistent. The difference of morphological characteristics and root yield with various germplasm were significant. The root yield per plant was positively correlated to the main root length and the number of individual plant leaves.
  
  
  CONCLUSIONS
  The number of leaves per plant and root length are selected for high-yield lines, meanwhile, leaf length and leaf diameter are important factors for breeding high-yield lines as well.
authors: Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China. gqs@njau.edu.cn
authors: Qiaosheng
authors: Q
authors: Guo
authors: Yuhang
authors: Y
authors: Chen
authors: Xiangwei
authors: X
authors: Yan
authors: Hanqing
authors: H
authors: Tian
authors: Qiaohua
authors: Q
authors: Deng
authors: Jianying
authors: J
authors: Guo
authors: Chengzong
authors: C
authors: Guan
mesh_terms: D018533:Biomass; D002681:China; D031219:Isatis / Q000033:anatomy & histology / Q000235:genetics* / Q000254:growth & development*; D018515:Plant Leaves / Q000033:anatomy & histology / Q000235:genetics / Q000254:growth & development; D018517:Plant Roots / Q000033:anatomy & histology / Q000235:genetics / Q000254:growth & development