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Ecotoxicological information

Toxicity to terrestrial plants

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Endpoint:
toxicity to terrestrial plants: short-term
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
GLP compliance:
yes
Species:
other: Glycine max, cucumis sativa and allium cepa
Test type:
other: seedling emergence toxicity and seedling growth toxicity
Study type:
laboratory study
Total exposure duration:
21 d
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
LC50
Effect conc.:
> 1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
EC50
Effect conc.:
> 1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Details on results:
Method of recording the values for growth (units used): Shoot mean dry weigh comparison to control

Signs of toxicity:
None
Conclusions:
The 21 day EC50 for the test substance to Glycine max, cucumis sativa and allium cepa was >1000 mg/kg. The No Observed Effect Concentration was 1000 mg/kg.
Endpoint:
toxicity to terrestrial plants: short-term
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: read across to K1 study
Reason / purpose for cross-reference:
read-across source
Species:
other: Glycine max, cucumis sativa and allium cepa
Test type:
other: seedling emergence toxicity and seedling growth toxicity
Study type:
laboratory study
Total exposure duration:
21 d
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
LC50
Effect conc.:
> 1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
seedling emergence
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
EC50
Effect conc.:
> 1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Species:
other: Glycine max, cucumis sativa and allium cepa
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
1 000 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth
Details on results:
Method of recording the values for growth (units used): Shoot mean dry weigh comparison to control

Signs of toxicity:
None
Conclusions:
The 21 day EC50 for the test substance to Glycine max, cucumis sativa and allium cepa was >1000 mg/kg. The No Observed Effect Concentration was 1000 mg/kg.

Description of key information

LC50 (emergence) and EC50 (growth) to soybean (Glycine max), to cucumber (Cucumis sativa), and to onion (Allium cepa)  based on nominal test concentrations were greater than 1000 mg/kg.

Key value for chemical safety assessment

Short-term EC50 or LC50 for terrestrial plants:
1 000 mg/kg soil dw

Additional information

A study was performed to assess the effects of the test material on the emergence and growth of three plant species. The method followed that described in the OECD Guidelines for Testing of Chemicals: Guideline 208: Terrestrial (Non-target) Plant Test: Seedling Emergence and Seedling Growth Test.

Three plant species (Glycine max, cucumis sativa and allium cepa) were exposed to concentrations up to 1000 mg/kg. The number of seedlings emerged and any mortalities and/or morphological abnormalities were determined daily for 21days after 50% emergence in the control for each species.

The 21 day EC50 for the test material to Glycine max, cucumis sativa and allium cepa was >1000 mg/kg. The No Observed Effect Concentration was 1000 mg/kg.