|Table of Contents|

Effects of Drought Stress on Physiological Characteristics of Root System of Spring Soybean in Flowering Period(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年03期
Page:
437-439,443
Research Field:
Publishing date:

Info

Title:
Effects of Drought Stress on Physiological Characteristics of Root System of Spring Soybean in Flowering Period
Author(s):
ZHAO Kun;  DONG Shou-kun; LIU Li-jun; SUN Cong-shu; ZU Wei
Agronomy College, Northeast Agricultural University, Harbin 150030,Heilongjiang,China
Keywords:
Soybean; Drought stress; SOD; POD; MDA
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.03.0437
Abstract:
The paper aimed to study the relation of drought resistance and the changes of physiological characteristics of soybean root system. It chose three varieties of soybean with different drought resistance potted in pots as experimental samples. The results showed that the relative moisture content and activity of soybean root system reduced with the increasing of drought stress degree, and the reduction level of the variety of soybean with strong drought-resistance was less than the weak one. The content of Malonaldehyde (MDA) of soybean root system rose with increasing the degree of drought, and there was no obvious difference among three varieties of soybean. The activity of Superoxide Dismutase（SOD） in the variety of soybean with strong resistance rose with increasing the level of drought, but the weak one showed increased in the beginning and then decreased. The Peroxidase (POD) activity of all varieties had the tendency of increasing in the beginning period and then decreasing, however, such change appeared in soybean with strong resistance was remarkable. In conclusion, the soybean in the condition of drought stress could increase its drought resistance by changing the physiological characteristics of the root system.

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Last Update: 2014-09-13