XU Ming-yuan,WANG Qian-bo,GUO Sheng-lei,et al.Effect of Drought Stress on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(01):181-187.
XU Ming-yuan,WANG Qian-bo,GUO Sheng-lei,et al.Effect of Drought Stress on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(01):181-187. DOI: 10.13422/j.cnki.syfjx.20202117.
Effect of Drought Stress on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus
To study the effects of different drought conditions on the growth and photosynthetic physiological parameters of
Acanthopanax senticosus,
in order to provide the theoretical basis for standardized planting and rational development and utilization of
A. senticosus
.
Method
2
In this study,three-year-old
A. senticosus
was used as experimental samples. The growth parameters,photosynthetic parameters,and photosynthetic physiological parameters were determined to study the effects of different drought conditions on the growth and photosynthesis of
A. senticosus
.
Result
2
The plant height and leaf number were significantly lower than the control group under drought stress conditions,and the leaf area was higher than the control group under drought stress. Net photosynthetic rate,stomata conductance and transpiration rate were not significantly different between the control group and the moderate drought stress group. They were significantly decreased in the severe drought stress group,while the intercellular carbon dioxide concentration increased with the severity of drought stress. With the treatment time,the initial fluorescence was higher in the severe drought stress group than in the control group,and the moderate drought stress group was lower than the control group,the maximum fluorescence was significantly lower in the severe drought stress group than in the control group, potential photochemical efficiency and maximum photochemical efficiency were significantly elevated in the moderate drought stress group.
Conclusion
2
Drought stress can significantly inhibit the growth of
A. senticosus
. Severe drought conditions can significantly inhibit the photosynthesis of
A. senticosus
leaves. This effect is related to the regulation of stomatal size,but not related to the activity of photoreaction center.
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Related Institution
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