Physiological Responses on Sedum yvesii under Water Stress

Hong Zeng; Liu Qing Yang; Xiao Qing Zhu

doi:10.4028/www.scientific.net/AMR.1073-1076.233

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1073-1076Physiological Responses on Sedum yvesii under...

Physiological Responses on Sedum yvesii under Water Stress

Abstract:

In order to learn the reaction and adaptability to water stress of Sedum yvesii, the changes in physiology of leaf water saturation deficit (RWD), plasma membrane relative permeability, chlorophyll content and fluorescence parameters were studied in different moisture gradient of water stress. The results showed that: after 20 days for submergence stress, it had an effect on the normal growth of Sedum yvesii; after 30 days for severe drought stress and 10 days for extreme drought stress, it can severely inhibit the growth of Sedum yvesii, even lead to death, which embodied in the dramatic decline of chlorophyll content, Fv /Fm, Fv'/Fm', ETR and the increase of RWD, relative electrical conductivity. The indicators of slight drought stress and moderate drought stress group have little differences with the control group. They did not cause a significant effect on the growth of Sedum yvesii, indicating that Sedum yvesii has a strong ability to these two kinds of water stress gradient.

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Periodical:

Advanced Materials Research (Volumes 1073-1076)

Pages:

233-238

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.233

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Online since:

December 2014

Authors:

Hong Zeng, Liu Qing Yang*, Xiao Qing Zhu

Keywords:

Adaptability, Fluorescence Parameters, Physiological Response, Sedum Yvesii, Water Stress

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* - Corresponding Author

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