Study on physiological adaptation of drought stress on up-rice at filling stage
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DOI：10.7606/j.issn.1000-7601.2008.04.31
Key Words: upland rice  protection activity  proline content  Malondialdehyde（ MDA）
Author NameAffiliation
WU Lei College of Agronomy Jilin Agricultural University,Changchun 130018, China 
CHEN Zhanyu College of Agronomy Jilin Agricultural University,Changchun 130018, China 
ZHANG Zhian College of Agronomy Jilin Agricultural University,Changchun 130018, China 
LI NG Fenglou College of Agronomy Jilin Agricultural University,Changchun 130018, China 
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Abstract:
      The flag leaves stress physiological index of four breeds of upland rice were studied on filling stage. The result showed that the activity of superoxide dismutase （SOD） peroxidase （POD） Catalase （CAT） and the content of Proline in drought stronger varieties（Handao15and Handao 2）were observably higher than drought resistance of the weaker varieties （ Handao 3and Handao 1） and the content of Malondialdehyde （ MDA） and the electrical conductivity in drought stronger varieties （Handao 15and Handao 2） were significantly lower than drought resistance of the weaker varieties （ Handao 1and Handao 3）. So the activity of SOD POD CAT and the content of MDA Proline the electrical conductance reveal the difference of physiological adaptation in different varieties.
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