Registration Dossier

Ecotoxicological information

Toxicity to terrestrial plants

Currently viewing:

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:
1993
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
Name:
Unnamed
Type:
Constituent

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.