|Table of Contents|

Effects of Drought Stress on Root Characteristics and Physiological Indexes of Glycine soja and Glycine max (PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年04期
Page:
615-622
Research Field:
Publishing date:

Info

Title:
Effects of Drought Stress on Root Characteristics and Physiological Indexes of Glycine soja and Glycine max
Author(s):
PU Wei-fengLI Gui-lanZHANG MinWANG DangWANG Lu-pingJI Zhan-boDAI BoQIAO Ya-ke
Hebei Normal University of Science & Technology,Changli 066600,Hebei,China
Keywords:
Drought stressGlycine sojaGlycine maxDrought resistance
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.04.0615
Abstract:
Four wild soybeans (Yong5, Yong26, Yong46, Yong52) and 4 cultivated soybeans (Zhonghuang 13, Jidou12, Qinhuang 10, Qinhuang 29) were used as materials in this study to discuss the effects of drought stress on root characteristics and physiological indexes of wild soybeans and cultivate soybeans. Drought stress conditions was simulated by different concentrations of PEG6000.The results showed that, the root characteristics of different soybean materials were significantly different with the increase of drought stress. Besides, drought resistance of soybean was positively correlated with total root length, total root surface and total root volume of the root, while drought resistance of soybean was negatively correlated with average roots diameter. The results of membership functions and comprehensive evaluation showed that wild soybean materials had stronger drought stress resistance than cultivated soybean, and Zhonghuang 13 cultivated soybean had the weakest drought stress resistance in all cultivated soybeans, besides, relative water contents of wild soybeans and cultivate soybean leaves were decreased and MDA content was increased than 0%PEG6000 under drought stress. However, the chlorophyll content, the activities of superoxide dismutase (SOD) and peroxidase (POD) had different performances, which indicated that there were some differences between the drought resistance physiological indexes of wild and cultivated soybeans.

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Last Update: 2014-09-14