| Literature DB >> 15093501 |
S Sauvé1, N Cook, W H Hendershot, M B McBride.
Abstract
Copper tissue concentrations of radish (Raphanus sativa cv. Cherry Belle), lettuce (Lactuca sativa cv. Buttercrunch) and ryegrass (Lolium perenne cv. Barmultra) grown in a greenhouse in urban contaminated soils are compared to total, soluble and free ion copper pools. The tissue concentrations of copper vary between 8.1 and 82.6 mg Cu kg(-1) dry tissue and the total soil copper content varies between 32 and 640 mg Cu kg(-1) dry soil. The linear regressions with cupric ion activity and total soil copper are both significant (p < 0.01), but cupric ion activity yields a higher level of statistical significance in every case. The results support the hypothesis that free metal in the soil solution is a better indicator of plant metal bioavailability than either total or soluble metal.Entities:
Year: 1996 PMID： 15093501 DOI： 10.1016/s0269-7491(96)00081-4
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071