Physiological and Biochemical Study on Medicago Glutinosa at Seedling Stage under Drought Stress

doi:10.7668/hbnxb.2008.S2.014

Abstract

Abstract: A study on the physiological??biochemical changes of different Medicago glutinosa materials under drought stress was carried out. The results showed that RWC, MDA, WSD, Pro and WSS were increased obviously with the in??crease of drought stress. Different accumulation contents were correlated with drought resistance ability of Medicago gluti??nosa,WSS and Pro of the variety with better drought resistance ability was more than that of the weaker ones, while rela??tive electric conduct ivity, MDA, WSD of the variety with better drought resistance ability was less than that of the weakerones, while the increase of cell membrane injury led to the variety with better drought resistance ability was less than thatof the weaker ones. RWC and water potent ial represent descendant trend. RWC of the variety with better drought resis??tance ability was less than that of the weaker ones, while the leaf water potential was reverse.

Key words: Medicago glutinosa, Seedling, Physiological and biochemical, Drought resistance

CLC Number:

S551.7

WANG Yan-hui, WANG Zan, SUN Gui-zhi, LI Yuan, GAO Hong-wen, WANG Xue-zheng. Physiological and Biochemical Study on Medicago Glutinosa at Seedling Stage under Drought Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S2): 65-69. doi: 10.7668/hbnxb.2008.S2.014.

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http://www.hbnxb.net/EN/Y2008/V23/IS2/65

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