Registration Dossier
Registration Dossier
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EC number: 231-847-6 | CAS number: 7758-98-7
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Already evaluated by the Competent Authorities for Biocides and Existing Substance Regulations.
Data source
Reference
- Reference Type:
- publication
- Title:
- Effect of cadmium, copper, and zinc on the growth of blackgram
- Author:
- Kalyanaraman, S.B. and Sivagurunathan, P.
- Year:
- 1 993
- Bibliographic source:
- Journal of Plant Nutrition 16, 2029-2042.
Materials and methods
- Principles of method if other than guideline:
- This study was designed to examine the effect of copper on the growth of blackgram.
Test material
- Reference substance name:
- Copper sulphate
- EC Number:
- 231-847-6
- EC Name:
- Copper sulphate
- Cas Number:
- 7758-98-7
- Molecular formula:
- CuSO4
- IUPAC Name:
- copper(2+) sulfate
Constituent 1
Test organisms
- Species:
- other: Vigna mungo
Results and discussion
Effect concentrationsopen allclose all
- Species:
- other: Vigna mungo
- Duration:
- 45 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 50 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- element
- Basis for effect:
- other: yield stem (No bioavailability correction possible as CEC is not given or can not be derived.)
- Remarks on result:
- other: No bioavailability correction possible as CEC is not given or can not be derived.
- Species:
- other: Vigna mungo
- Duration:
- 45 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 100 mg/kg soil dw
- Nominal / measured:
- meas. (initial)
- Conc. based on:
- element
- Basis for effect:
- other: yield leaves (No bioavailability correction possible as CEC is not given or can not be derived.)
- Remarks on result:
- other: No bioavailability correction possible as CEC is not given or can not be derived.
Any other information on results incl. tables
see Executive summary
Applicant's summary and conclusion
- Conclusions:
- Reliability: high quality NOEC values are 50 (yield stem) and 100 (yield leaves) mg/kg.
No bioavailability correction possible as CEC is not given or can not be derived. - Executive summary:
Blackgram (Vigna mungo, L.) growth was measured in a glass-house earthen-pot experiment. Cadmium (Cd), copper (Cu), and zinc (Zn) were applied in different concentrations to the soil. The plant and soil samples were analysed 45 days after sowing using ICP-AES. The dry matter yield of tissue showed highly significant reduction (at the 1 % level) for Cd and Cu, and nonsignificant variation for Zn. This shows that phytotoxicity for Cd and Cu was greater than that for Zn. Further, the observed higher correlation coefficients suggest that the concentration of the elements in tissue is linearly related to that applied to the soil.
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