| 【Objective】In order to screen out Sarcandra glabra with strong adaptability and high contents of
effective components in Hunan Province, the plant height, ground diameter, leaf morphology, root growth, biomass, leaf
photosynthetic parameters and effective component contents of 2-year-old seedlings of S. glabra from five provenances
were measured and analyzed.【Method】The photosynthetic parameters of mature leaves were determined by LI-6400
portable photosynthetic apparatus, the contents of isozinpidine and rosmarinic acid were determined by HPLC, and the contents of extracts were determined by hot dipping method. The five provenances of S. glabra were comprehensively evaluated
by principal component analysis.【Result】（1）There were significant differences in plant height, ground diameter, leaf
morphology, root growth and biomass among different provenances. The plant height, ground diameter, leaf area, root length, root
surface area and biomass of S. glabra from Zhaoping, Guangxi were 35.53 cm, 4.03 mm, 302.99 cm2
, 508.80 cm, 150.43 cm2
and 17.06 g, which were significantly higher than those of other provenances.（2）There were significant differences
in net photosynthetic rate, intercellular CO2
concentration, stomatal conductance and transpiration rate among different
provenances. The net photosynthetic rate of S. glabra from Zhaoping Guangxi was the highest, which was 3.91 µmol/m2
.s.
（3）There were significant differences in the contents of isofraxidin, rosmarinic acid and extract among different provenances.
The contents of isofraxidin and rosmarinic acid of S. glabra from Zhaoping Guangxi were higher, which were 3.81 mg/g and
44.08 mg/g, respectively, while the content of extract from Sanyuan, Fujian was higher, which was 26.52%.（4）According to
the results of a comprehensive evaluation on the growth adaptability of different provenances in Hunan, the adaptability was
showed as: Guangxi Zhaoping provenance ＞ Jiangxi Jiujiang provenance ＞ Hunan Yongding provenance ＞ Fujian Sanyuan
provenance ＞ Guizhou Qiandongnan provenance.【Conclusion】S. glabra from Zhaoping of Guangxi and Jiujiang of Jiangxi
have strong adaptability and growth potential to the environment of Hunan. |
