[Relationships between Dendrobium quality and ecological factors based on partial least square regression].
A total of eleven ecological factors values were obtained from the ecological suitability database of the geographic information system for traditional Chinese medicines production areas (TCM-GIS), and the relationships between the chemical components of Dendrobium and the ecological factors were analyzed by partial least square (PLS) regression. There existed significant differences in the chemical components contents of the same species of Dendrobium in different areas. The polysaccharides content of D. officinale had significant positive correlation with soil type, the accumulated dendrobine in D. nobile was significantly positively correlated with annual precipitation, and the erianin content of D. chrysotoxum was mainly affected by air temperature. The principal component analysis (PCA) showed that Zhejiang Province was the optimal production area for D. officinale, Guizhou Province was the most appropriate planting area for D. nobile, and Yunnan Province was the best production area of D. chrysotoxum.
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China. lwt5210819@163.com
Wen-Tao
WT
Li
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China.
Lin-Fang
LF
Huang
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China.
Jing
J
Du
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100193, China.
Shi-Lin
SL
Chen
D002681:China; D031667:Dendrobium / Q000737:chemistry / Q000145:classification* / Q000254:growth & development*; D017753:Ecosystem; D040362:Geographic Information Systems; D016018:Least-Squares Analysis; D008962:Models, Theoretical; D011786:Quality Control; D012044:Regression Analysis; D013696:Temperature