Metal accumulation in lolium perenne and brassica napus as affected by application of chitosans

Kamari, A., Pulford, I.D. and Hargreaves, J.S.J. (2012) Metal accumulation in lolium perenne and brassica napus as affected by application of chitosans. International Journal of Phytoremediation, 14(9), pp. 894-907. (doi:10.1080/15226514.2011.636401)

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Abstract

The effects of chitosan, a fishery waste-based material, and its derivative glutaraldehyde cross-linked chitosan (chitosan-GLA) on metal uptake by Lolium perenne (perennial ryegrass) and Brassica napus (rapeseed) were studied in a greenhouse pot experiment. Metal uptake by perennial ryegrass was highly dependent on the rate of addition of the chitosans. Low application rate (1% w/w) enhanced metal uptake, whereas 10% (w/w) addition decreased metal uptake. It was estimated that chitosan 1% (w/w) treatment could assist perennial ryegrass to remove approximately 3.2 kg Zn/ha and 0.29 kg Pb/ha. For rapeseed, metal uptake was decreased at all rates of application of chitosans. The ammonium acetate extractable metals in soil decreased following application of chitosans and plant growth.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Pulford, Dr Ian and Hargreaves, Professor Justin
Authors: Kamari, A., Pulford, I.D., and Hargreaves, J.S.J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:International Journal of Phytoremediation
Publisher:Taylor & Francis
ISSN:1522-6514
ISSN (Online):1549-7879
Published Online:10 February 2012

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