| Effects of water stress on physiological characteristics of Taraxacum kok-saghyz Rodin (TKS) populations from three different regions |
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| DOI：10.7606/j.issn.1000-7601.2016.03.24 |
| Key Words: Taraxacum kok-saghyz Rodin(TKS) drought stress polyethylene glycol physiological response |
| Author Name | Affiliation | | XU Jian-xin | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China | | YANG Jie | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China | | GAO Yu-yao | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China | | WU Jing | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China | | SUN Zheng-mei | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China | | LIU Shi-zhong | Zhanjiang Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Tropical Dry Farming Research Center, Zhanjiang, Guangdong 524013, China |
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| Abstract: |
| Three TKS populations from different regions were taken as the test materials in this paper, and the effects of simulated drought stress with different concentration of polyethylene glycol (PEG6000) were investigated on their leaf water content, chlorophyll content, activity of antioxidant protective enzyme, content of osmotic adjustment and MDA, leaf length, leaf width and maximum root length. The results showed that leaf water content, chlorophyll content, activity of antioxidant protective enzyme and growth and development indexes became decreased and content of osmotic adjustment and MDA went increased with the increase of drought stress. All of these variations suggested that drought resistance capabilities of three TKS populations from different regions are in the order of Zhaosu population＞Shihezi population＞Linxia population. |
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