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Acta Prataculturae Sinica ›› 2009, Vol. 18 ›› Issue (4): 230-235.

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Effect on physiological characteristic of Medicago sativa under saline-alkali stress at seeding stage

ZHANG Yong-feng1,2,3, LIANG Zheng-wei1, SUI Li2, CUI Yan-ru2   

  1. 1.Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun
    130012, China; 2.Jilin Academy of Agricultural Sciences, Changchun 130124, China;
    3.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2009-03-23 Online:2009-08-20 Published:2009-08-20

Abstract: Under different saline-alkali stress, the physiological biochemistry response of Medicago sativa Gongnong No.1 leaves were studied. The content of soluble sugar and proline were increased with saline-alkali concentration increasing, could be up to 87.16% and 753.49 μg/g respectively; The rate of bound water increases gradually when increasing saline-alkali concentration, but the rate of free water had no remarkable change, the rate of bound water/free water was 0.94; Water retaining capacity of isolated leaves decreased 12%-48%, when increasing saline-alkali concentration.

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