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3112262 
Journal Article 
Study on Absorption of Heavy Metal by Capsicum Annuum Linn and Brassica Chinensis in Contaminated Soil 
Jiang Binhui; Jiang Li; Chen Zhongyu; Zhong Yu; Wang Li 
2009 
2009-2013 
WOS:000271258000358 
The ability of Capsicum annuum Linn and Brassica chinensis to accumulate the heavy metal ions of Lead (Pb) and Copper (Cu) was assessed under different concentrations through that laboratory incubation and pot experiment were conducted in this study. The some absorption interactions between plants and heavy metals pollution were investigated under six concentrations of Pb(2+) and Cu(2+) (5 mg.L(-1), 10 mg.L(-1), 50 mg.L(-1), 100 mg.L(-1), 250 mg.L(-1) and 500 mg.L(-1)) with a control group. The results showed that the effect of Pb(2+) and Cu(2+) stress on seed germination and seeding growth at the two vegetable crops was obvious. Moreover, the uptake of Pb(2+) and Cu(2+) by two vegetable crops was studies too. The results showed that seed germination was not affected adversely when Pb(2+) and Cu(2+) concentrations were lower(Pb(2+) <100 mg.L(-1), Cu(2+) <50 mg.L(-1)). But higher concentration Pb(2+) and Cu(2+) had negative effect on germinating energy and germination rate of seeds of C. annuum and B. chinensis. Cu(2+) had more depression on seed germination of the two vegetable crops compared with Pb(2+) at the same concentration. Growth of seeds of two vegetable crops had no great changes at lower concentrations of Pb(2+) and Cu(2+), but their leaf and root were gradually reduced, with increased Pb(2+) and Cu(2+) concentrations The effect of Pb(2+) and Cu(2+) on the root was much more obvious than them on the shoot. With the increase of Pb(2+) and Cu(2+), Pb(2+) and Cu(2+) contents in the C. annuum and B. chinensis were different. Two vegetable crops had accumulated amount of Pb(2+) in the range of 100-250 mg.L(-1), but uptake of Pb(2+) by B. chinensis was higher than that of C. annuum. The uptake of B. chinensis for Cu(2+) was showed a poor efficiency. The results further confirm the efficiency of B. chinensis as an accumulator for Pb(2+) and not for Cu(2+). 
capsicum annuum Linn; Bbrassica chinensis; Pb(2+); Cu(2+); absorption