[Contrast of growth characteristics of different germplasm and correlation between morphologic and individual yield of Isatis indigotica].
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.
Guo
Qiaosheng
Q
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China. gqs@njau.edu.cn
Chen
Yuhang
Y
Yan
Xiangwei
X
Tian
Hanqing
H
Deng
Qiaohua
Q
Guo
Jianying
J
Guan
Chengzong
C
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