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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (19): 83-86.doi: 10.11924/j.issn.1000-6850.casb15110105

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Effects of Temperature Stress on Chlorophyll Content, Soluble Sugar and MDA in Trifolium repens L.

  

  • Received:2015-11-19 Revised:2016-06-02 Accepted:2016-04-18 Online:2016-07-15 Published:2016-07-15

Abstract: The objective of this study is to explore the effect of low temperature stress on chlorophyll, soluble sugar and MDA in Trifolium repens L.. The new strain‘08-2’and‘Haifa’of Trifolium repens were used as the materials, and then the treatments of 10, 5, 0, -5, -10, -15℃ were set. The variations of chlorophyll, soluble sugar and MDA were studied under low temperatures, and the cold resistances of the materials were evaluated. The results showed that varying temperature had a great influence on chlorophyll, soluble sugar and MDA in Trifolium repens L.. With the decrease of temperature, the chlorophyll content declined gradually. The declining speed of‘08-2’was less than that of‘Haifa’under lower temperature (≤0℃). The soluble sugar content of‘08-2’was the highest at 0℃, and the soluble sugar content of‘Haifa’was the highest at 5℃. With the decrease of temperature, the MDA content and electric conductivity increased gradually, but the change range of‘08-2’was lower than that of‘Haifa’. Comprehensive analysis showed that the cold resistance of the new strain‘08-2’was better than that of‘Haifa’.

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