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Effect of Excessive Fe~(2+) on Soybean Growth

ZHANG Yi et al (College of Life and Environmental Science, Zhejiang Normal University,Jinhua, Zhejiang 321004)  
The effect of the different supplementation of excessive Fe 2+ (100,300 and 500 mg/kg) on soybean(Glycine max)variety—Zhechun 3 growth was studied. The results showed that excessive Fe 2+ treatment significantly affected soybean growth. Fe 2+ stress decreased soybean leaf area and leaf specific weight. Low Fe 2+ toxicity inhibited growth of root and the stem, the length and the surface area of soybean roots all decreased, but the growth of root were promoted under the Fe 2+ level of 500 mg/kg.
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