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《Anhui Agricultural Science Bulletin》 2007-04
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Influences of Cold Stress on Physiological Indexes of Bermudagrass Cultivars

Liu Zhixiong Zhou Gaofeng Liao Qirong Fei Yongjun(1 College of Horticulture and Gardening,Yangtze Universtiy,Jingzhou,Huibei,434025,China;2 Institute of Turfgrass Science,Beijing Forest University,Beijing 100083,China)  
By measuring physiological indexes of plasma permeability,the content of free praline and malondialdehyde(MDA),the content of soluble sugar,we researched 3 kinds of Chloropgyll Bermudagrass(Cynodon dactylon)cultivars(Common,Jackpot,Savannah)leaves under controlled cold condition(day length 13h;mean temperature 8.6℃)and natural conditions.The results show that:the content of soluble sugar,free praline and MDA of 3 bermudagrass cultivars leaves under controlled cold conditions increased.The relative plasma permeability of tested materials increased too.The content of Chloropgyll of 3 bermudagrass cultivars decreased with the degree of cold stress.In conclusion,3 bermudagrass cultivars show optimistic response to cold stress and increase their cold tolerance.Comparing 3 tested bermudagrass cultivars,Common is best adapted to cold conditions,and then Savannah,the last one is Jackpot.
【Fund】: 湖北省科技厅攻关项目(编号:2002AA3001C99);; 湖北省教育厅重大科研项目(编号:2002Z0007);; 湖北省涝渍灾害与湿地农业重点实验室开放基金(编号:HNKFJ2002C03)
【CateGory Index】: S688.4
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