Effect of Mercury Stress on Photosynthetic Characteristics of Two Kinds of Warm Season Turf Grass
International Journal of Environmental Monitoring and Analysis
Volume 3, Issue 5, October 2015, Pages: 293-297
Received: Nov. 12, 2015; Published: Nov. 12, 2015
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Authors
Yu-chen Guo, Department of horticulture, Soochow University, Suzhou, China
Ying-ying Liu, Department of horticulture, Soochow University, Suzhou, China
Rui-ying Wang, Department of horticulture, Soochow University, Suzhou, China
Sai Wang, Department of horticulture, Soochow University, Suzhou, China
Xiao-ping Lu, Department of horticulture, Soochow University, Suzhou, China
Bo Wang, Department of horticulture, Soochow University, Suzhou, China
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Abstract
In this paper, we adopted the pot simulation test method and took the plants that had been polluted by heavy metals as the research materials, to reveal the effect of mercury stress on photosynthetic characteristics and material production of turf grass. The results showed that, with the increase of the mercury stress intensity and the extension of time, the net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) of leaf of the two kinds of grass continued to decline, while the intercellular CO2 concentration (Ci) continued to rise. The influence of mercury stress on photosynthetic characteristics of the two kinds of grass was shifting from stomatal limitation to non-stomatal limitation. The results of this study provide a theoretical basis for exploring the mechanism of mercury stress on the photosynthetic characteristics of turf grass.
Keywords
Mercury Stress, Turf Grass, Photosynthetic Characteristics
To cite this article
Yu-chen Guo, Ying-ying Liu, Rui-ying Wang, Sai Wang, Xiao-ping Lu, Bo Wang, Effect of Mercury Stress on Photosynthetic Characteristics of Two Kinds of Warm Season Turf Grass, International Journal of Environmental Monitoring and Analysis. Vol. 3, No. 5, 2015, pp. 293-297. doi: 10.11648/j.ijema.20150305.18
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