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1.黑龙江省林业科学院,哈尔滨 150081
2.黑龙江中医药大学,哈尔滨 150040
3.广东药科大学 附属第一医院,广州 510000
4.东北林业大学 化学化工与资源利用学院,哈尔滨 150040
徐明远,博士,主管药师,从事中药资源与开发利用研究,E-mail:xumingyuan2000@163.com
王振月,教授,从事中药资源开发与生物技术研究,E-mail:wangzhen_yue@163.com
收稿日期:2020-07-13,
网络出版日期:2020-08-06,
纸质出版日期:2020-10-20
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徐明远,王谦博,郭盛磊等.遮光对刺五加生长以及光合生理参数的影响[J].中国实验方剂学杂志,2020,26(20):140-145.
XU Ming-yuan,WANG Qian-bo,GUO Sheng-lei,et al.Effect of Shading on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(20):140-145.
徐明远,王谦博,郭盛磊等.遮光对刺五加生长以及光合生理参数的影响[J].中国实验方剂学杂志,2020,26(20):140-145. DOI: 10.13422/j.cnki.syfjx.20202116.
XU Ming-yuan,WANG Qian-bo,GUO Sheng-lei,et al.Effect of Shading on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus[J].Chinese Journal of Experimental Traditional Medical Formulae,2020,26(20):140-145. DOI: 10.13422/j.cnki.syfjx.20202116.
目的
2
研究遮光条件对刺五加生长及光合生理参数的共同影响,可为规范化种植和合理开发利用刺五加提供理论依据。
方法
2
该研究使用三年生刺五加为实验样本,通过测定株高、叶片数、叶面积等生长参数以及光合生理参数,研究不同遮光条件对刺五加生长及光合作用的影响规律。
结果
2
株高、叶片数及叶面积在遮光处理条件下显著均高于对照组,在中度遮光条件下最高。净光合速率、气孔导度、蒸腾速率在中度遮光组中显著高于对照组,在重度遮光组有所降低,而胞间二氧化碳浓度则在中度遮光组中显著低于其他处理组。随着处理时间的进行,初始荧光在中度遮光组中与对照组无显著性,而在重度遮光组中显著升高;最大荧光在遮光处理组显著高于对照组,在中度遮光组中最高;潜在光化学效率和最大光化学效率则在中度遮光组与对照组无显著性差异,在重度遮光组中不断下降,显著低于其他处理组。
结论
2
遮光处理有利于刺五加的生长,中度遮光条件可显著提高刺五加的光合作用,重度遮光处理可显著抑制刺五加叶片光合作用,这种作用与其调节气孔调节有关,也与光反应中心的活性相关。
Objective
2
To study the effect of different shading conditions on the growth and photosynthetic physiological parameters of
Acanthopanax senticosus
,and provide a theoretical basis for standardized planting and rational development and utilization of
A. senticosus
.
Method
2
Three-year-old
A. senticosus
was used as the experimental sample.The growth parameters and photosynthetic physiological parameters of plant height,leaf number and leaf area were determined to study the effects of different shading conditions on the growth and photosynthesis of
A. senticosus
.
Result
2
Plant height,leaf number,and leaf area were significantly higher in the shading treatment than in the control group,and highest under moderate shading conditions.The net photosynthetic rate,stomatal conductance,and transpiration rate were significantly higher in the moderate shading group than in the control group,and decreased in the severe shading group,while the intercellular carbon dioxide concentration was significantly lower in the moderate shading group than in the other treatment groups.As the treatment time progressed,the initial fluorescence was not significantly higher in the moderate shading group than in the control group,but significantly higher in the severe shading group;the maximum fluorescence was significantly higher in the shading group than in the control group,in the moderate shading group.The potential photochemical efficiency and maximum photochemical efficiency were not significantly different between the moderate shading group and the control group and decreased in the severe shading group,which was significantly lower than other treatment groups.
Conclusion
2
Shading treatment is beneficial to the growth of
A. senticosus
.The moderate shading condition can significantly improve the photosynthesis of
A. senticosus
.Severe shading treatment can significantly inhibit the photosynthesis of
A. senticosus
leaves.This effect is related to the regulation of stomatal regulation. The activity of the photoreaction center is related.
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