| 土壤外源汞污染对大豆幼苗生长的影响研究 |
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| 引用本文： | 王新,梁仁禄,周启星.土壤外源汞污染对大豆幼苗生长的影响研究[J].农业环境科学学报,2001,20(2):72-77. |
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| 作者姓名： | 王新 梁仁禄 周启星 |
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| 作者单位： | 中国科学院沈阳应用生态研究所 |
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| 基金项目： | 中国科学院陆地生态系统痕量物质生态过程开放研究实验室，“百人计划”污染生态化学资助项目 |
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| 摘 要： | 采用盆栽实验的方法研究了土壤外源汞对大豆幼苗生长发育的影响。结果表明 ,随着土壤外源汞浓度的增加 ,大豆的出苗率、根系生长速率受到不同程度的抑制。当土壤汞浓度为10.0mg·kg-1、15.0mg·kg-1时 ,大豆出苗率分别为对照的78 %、67 % ,根长与对照相比降低了20.5 %、28.4 %。当土壤汞浓度大于10mg·kg-1时 ,大豆幼苗叶绿素含量、蒸腾强度有所降低 ,幼苗生长速率减缓
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| 关 键 词： | 大豆 汞 生长发育 |
| 文章编号： | 1000－0267(2001)02－0074－04 |
| 修稿时间： | 2000年8月30日 |
Effects of Mercury on Soybean Seedlings Growth |
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| WANG Xin,LIANG Ren_lu,ZHOU Qi_xing.Effects of Mercury on Soybean Seedlings Growth[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2001,20(2):72-77. |
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| Authors: | WANG Xin LIANG Ren_lu ZHOU Qi_xing |
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| Abstract: | Pot experiment studies were conducted on soil treated withmercury to probe the effectiveness of the heavy metal on soybean seeding growth. The results gained from this experiment showed that emergence rate and root growth both were restrained with increasing concentrations of mercury in soil. Mercury contents with 10.0 mg.kg－1 and 15.0 mg.kg－1 in the soil reduced the emergence rate of soybean seedling from 100％ to 71％, 67％ and decreased 20.5％, 28.4％ for root depth of soybean seedling, respectively, as comparing with the control. When mercury concentration in soil was more than 10.0 mg.kg－1, the contents of chlorophyll and transpiration rates of soybean seedlings were decreased. |
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| Keywords: | soybean mercury growth and development |
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