Journal of Food, Agriculture and Environment
Vol 10,
Issue 2,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Influence of cadmium stress on chlorophyll fluorescence characteristics in Populus × canescens
Author(s):
Hui-Ping Dai 1,
Yuan Wei 2, Tu-Xi Yang 3, Wen-Qing Sa 1, An-Zhi Wei 3*Recieved Date: 2011-12-02, Accepted Date: 2012-04-27
Abstract:Young Populus×canescens plants were grown by hydroponic method and exposured to four Cd2+ concentrations of (10, 30, 50 and 70 µM) in contrast to the control (non-Cd) for 7, 14, 21 and 28 days.Chlorophyll fluorescence parameters were very sensitive to Cd stress in grey poplar. Fv/ Fo and Fv/Fm ratio generally declined with increasing Cd levels at the 7, 14, 21 and 28 days. Increasing cadmium concentration up to 70 µM resulted in a greater suppression of ΦPSII activity; the Fv/Fm and Fo/Fv ratio, qN and qp decreased. In conclusion, the initial level of chlorophyll fluorescence intensity (Fv/Fm and Fo/Fv ratio, qN and qp) remained almost unaffected by cadmium treatment.
Keywords:Cadmium,
chlorophyll fluorescence, grey poplarJournal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 2
Category: Environment
Pages: 1281-1283
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