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UPTAKE OF COPPER IN HYDRILLA *
Author(s) -
SUTTON DAVID L.,
BLACKBURN R. D.
Publication year - 1971
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1971.tb00975.x
Subject(s) - copper , hydrilla , aeration , chemistry , biology , ecology , organic chemistry , aquatic plant , macrophyte
Summary. A linear increase from 933 to 15,943 ppmw of copper occurred in hydrilla ( Hydrilla verticillata Casp.) 4 days after treatment with copper sulphate pentahydrate (CUSO 4 . 5H 2 O, CSP) at 0·5–4·0 ppmw of copper. Neither increase in calcium levels to 0·8 MM in the ambient solution nor aeration affected the amount of copper in excised hydrilla tissue during a 24‐h treatment period with CSP at 1·0 ppmw of copper. Part of the accumulated copper appeared to be bound in hydrilla. A higher accumulation of copper occurred after treatment with an organic copper complex (cutrine) than with either CSP or copper chloride (CuCI 2 .2H 2 O, at 1·0 ppmw of copper. This high accumulation with cutrine appeared to be related principally to the amount of copper remaining in the treatment solution.