向日葵对镉的植物吸收、相互作用、毒性及修复作用
Phytoaccumulation, interaction, toxicity and remediation of cadmium from Helianthus annuus L. (sunflower).
作者信息
Mani Dinesh, Sharma Bechan, Kumar Chitranjan
机构信息
Sheila Dhar Institute of Soil Science, Chemistry Department, University of Allahabad, Allahabad, 211002, India.
出版信息
Bull Environ Contam Toxicol. 2007 Jul;79(1):71-9. doi: 10.1007/s00128-007-9153-3. Epub 2007 Jun 5.
An investigation was conducted to study the interaction between Cd and Ca, Zn and organic matter for Cd-phytoremediation in sunflower on the alluvium soil of the Sheila Dhar Institute (SDI) experimental farm, Allahabad (India). Application of 40 ppm Zn produced 11.18% extra dry matter (DM) content and 5.8% extra seed yield over the control. We recommended 1.0% Ca, 40 ppm Zn and 20 tons/ha of compost to enhance dry matter yield and diminish the Cd accumulation in 15 ppm Cd- ethylenediaminetetraacetic (EDTA)-treated plots up to 1/12 folds in sunflower (<0.21 ppm), which indicated phytoremediation of Cd-contaminated soil through soil-plant-rhizospheric processes.
在印度阿拉哈巴德希拉·达尔研究所（SDI）实验农场的冲积土上，开展了一项研究，以探究镉与钙、锌以及有机物之间的相互作用对向日葵镉植物修复的影响。与对照相比，施加40 ppm锌使干物质（DM）含量额外增加了11.18%，种子产量额外增加了5.8%。我们建议施加1.0%的钙、40 ppm的锌和20吨/公顷的堆肥，以提高干物质产量，并将15 ppm镉-乙二胺四乙酸（EDTA）处理地块中向日葵的镉积累量降低至1/12倍（<0.21 ppm），这表明通过土壤-植物-根际过程对镉污染土壤进行了植物修复。
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