|Table of Contents|

Physiological and Biochemical Responses of Different Soybeans under PEG Simulated Drought Stress(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年03期
Page:
370-373
Research Field:
Publishing date:

Info

Title:
Physiological and Biochemical Responses of Different Soybeans under PEG Simulated Drought Stress
Author(s):
WANG Lin-hong1; QIAO Xiao2; QIAO Ya-ke1; WANG Di1; YANG Xiao-qian1; LIU Chen-guang1; Duan Peng-bo1; LI Gui-lan1
1.Life Science and Technology College,Hebei Normal University of Science & Technology,Changli 066600,China;2.Department of Physics,Hebei Normal University of Science & Technology,Qinhuangdao 066004,China
Keywords:
Soybean; Drought stress; Physiological and biochemical indexes; Variation
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.03.0370
Abstract:
Seven soybeans with different drought resistance were used as materials in this study to research the variation of relevant droughtresistance indexes with drought stress time.The drought conditions were imitated with 20% PEG6000at soybean seedling stage.Superoxide dismutase(SOD)and peroxidase(POD)activities and free proline(Pro),soluble sugar(WSS),chlorophyll and malondialdehyde(MDA)contents were measured from the first day to sixth day after drought treatment.The results showed that with the increase of stress time,activities of SOD and POD rose at first and then descend.Contents of Pro,WSS and MDA appeared rise continually.Meanwhile,chlorophyll contents increased in the first day to second day.The response speed of SOD and POD of wild soybeans to drought stress was significantly faster than cultivated soybeans.Chlorophyll content of wild soybeans changed relatively gently,while the variation of cultivated soybeans was drastic.MDA content of wild soybeans grew much less than cultivated varieties during the whole drought stress treatment.

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Last Update: 2014-08-01