Lotfy, S.M. <br/><br/>
Influence of some chelators on the phytoextraction ability of sunflower (Helianthus annuus) for cd and pb metals in polluted soil  [electronic resource]. 
 تأثير بعض المواد المخلبية على القدرة الاستخلاصية لنبات عباد الشمس لكل من عنصرى الكادميوم والرصاص من الأراضى الملوثة. 

 - P541-558. 
<br/><br/>Includes reference. 
<br/><br/> Chelation and complexation of heavy metals were evaluated as practical ways to solubilize, detoxify, and enhance heavy metals accumultion by plants. sunflower (helianthus annuus) was selected as a potential heavy metals accumulator for metals in two selected soils different in texture and contamination levels. to enhance metals phyto-extraction, ammonium nitrate and organic chelators (edta, and citric acid) were added to soils at rates of 0 to 20 mmol kg⁻¹ pots experiment was run for 8 weeks. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sunflowers.<br/>Heavy metals.<br/>Heavy metals--Absorption and adsorption.<br/>Plants--Effect of heavy metals on.<br/>Phytoalexins.<br/>Plant-soil relationships.<br/>Citric acid.