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EC number: 214-787-5 | CAS number: 1194-65-6
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 27 April 2004 to 26 August 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
- Version / remarks:
- Proposal for Updating Guideline 208, Draft Document July 2000
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- 6.75% solution of 2,6-dichlorobenzonitrile
- Analytical monitoring:
- no
- Details on sampling:
- Additional pots were treated with 3200 g test material/ha for analytical verification.
- Vehicle:
- no
- Details on preparation and application of test substrate:
- - Method of application to soil surface (if used): to ensure a homogenous distribution, the test material was mixed with a fixed amount of sand. After grinding the sand to quartz powder, the granules were added and ground until the sand-granule mixture was homogenous. This mixture was then spread homogeneously onto the moist soil.
- Species:
- Allium cepa
- Plant group:
- Monocotyledonae (monocots)
- Details on test organisms:
- - Common name: onion
- Plant family: Liliaceae - Species:
- Avena sativa
- Plant group:
- Monocotyledonae (monocots)
- Details on test organisms:
- - Common name: oat
- Plant family: Poaceae - Species:
- Helianthus annuus
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: sunflower
- Plant family: Compositeae - Species:
- Lycopersicon esculentum
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: tomato
- Plant family: Solanaceae - Species:
- Pisum sativum
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: pea
- Plant family: Fabaceae - Species:
- Raphanus sativus
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: radish
- Plant family: Brassicaceae - Test type:
- other: seedling emergence and seedling growth
- Study type:
- laboratory study
- Substrate type:
- natural soil
- Limit test:
- no
- Total exposure duration:
- 21 d
- Details on test conditions:
- TEST SYSTEM
- Testing facility: growth chamber
- Test container (type, material, size): commercial plastic flower pots - 14 cm diameter
- Method of seeding: seeds were manually introduced
- No. of seeds per container: 5
- No. of replicates per treatment group: 8
- No. of replicates per control: 8
- No. of replicates per vehicle control: 8
SOURCE AND PROPERTIES OF SUBSTRATE (if soil)
- Soil type: sandy loam
- Organic carbon (%): 1.02 ± 0.17 %
GROWTH CONDITIONS
- Photoperiod: 16 hours light/8 hours dark
- Light intensity and quality: 5320-17690 lux
- Day/night temperatures: 22.51-26.30 ºC (day); 16.68-18.61 ºC (night)
- Relative humidity (%): 45.90-69.90 (day); 44.20-81.80 (night)
- Watering regime and schedules: daily when necessary via bottom watering through saucers
EFFECT PARAMETERS MEASURED:
- Fresh weight of all plants of a pot - 21 days after application
- Mortality - 21 days after application
- Germination - 7, 14 and 21 days after application
- Phytotoxicity rating system (if used): EPPO Standard PP 1/135 - 7, 14 and 21 days after application
- Growth stages - on application day and 21 days after application
TEST CONCENTRATIONS
- Range finding study results used to determine the conditions for the definitive study: yes - Nominal and measured concentrations:
- 13.11, 32.77, 81.92, 204.8, 512, 1280 and 3200 g test material/ha
- Reference substance (positive control):
- no
- Key result
- Species:
- Avena sativa
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 100.31 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 206.78 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 452.1 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Raphanus sativus
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 659.78 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Pisum sativum
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 1 249.53 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Helianthus annuus
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 1 365.04 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Details on results:
- Results of fresh weight measurements, germination, mortality, phytotoxicity and plant growth are summarised in Table 2.
Fresh weights - The fresh weights were statistically significant reduced in A. sativa, A. cepa and L. esculentum at 81.92 g test material/ha and higher. For R. sativus, P. sativum and H. annuus the fresh weights were statistically significant reduced at 204.8, 1280 and 3200 g test material/ha, respectively.
Mortality - Mortality was observed in A. sativa at dose rate of 81.92 g test materiall/ha and higher (statistically significant at 204.8 g test material/ha) and for A. cepa statistically significant mortality was observed at 1280 g test material/ha (21 %). For R. sativus and H. annuus mortality was observed at 1280 g test material/ha (3 %, each) but not at the higher rate 3200 g test material/ha. No mortality was observed in L. esculentum and P. sativum.
Germination - The germination rate was significantly reduced in A. sativa at a dose rate of 204.8 g test material/ha and higher, for A. cepa at 1280 g dichlobenil/ha, for R. sativus at 512 g test material/ha and higher, for L. esculentum at 1280 g test material/ha and higher and for P. sativum at 1280 g test material/ha and higher. The germination rate of H. annuus was not affected.
Phytotoxicity - Phytotoxic effects, observed on all plant species, was mainly observed as growth reduction. In addition, chlorosis were observed in R. sativus and P. sativum and necrosis occurred in P. sativum and H. annuus.
The effective (dose) rates (based on fresh weight measurements are summarised in Table 2. - Validity criteria fulfilled:
- yes
- Conclusions:
- Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Avena sativa with an ER50 value of 100.31 g test material/ha.
- Executive summary:
In a GLP compliant seedling emergence and seedling growth test conducted in line with standardised guideline OECD 208, the effect of the test material on seedling emergence and seedling growth over 21 days was determined. The effect of the test material on seedling emergence and seedling growth in six species was tested at nominal concentrations of 13.11, 32.77, 81.92, 204.8, 512, 1280 and 3200 g test material/ha. Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Avena sativa with an ER50 value of 100.31 g test material/ha.
- Endpoint:
- toxicity to terrestrial plants: long-term
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19 April 2004 to 26 August 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 208 (Terrestrial Plants Test: Seedling Emergence and Seedling Growth Test)
- Version / remarks:
- Proposal for Updating Guideline 208, Draft Document July 2000
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- 6.75% solution of 2,6-dichlorobenzonitrile
- Analytical monitoring:
- no
- Details on sampling:
- One additional pot was treated with 8100 g test material/ha for analytical verification.
- Vehicle:
- no
- Details on preparation and application of test substrate:
- - Method of application to soil surface (if used): to ensure a homogenous distribution, the test material was mixed with a fixed amount of sand. After grinding the sand to quartz powder, the granules were added and ground until the sand-granule mixture was homogenous. This mixture was then spread homogeneously onto the moist soil.
- Species:
- Allium cepa
- Plant group:
- Monocotyledonae (monocots)
- Details on test organisms:
- - Common name: onion
- Plant family: Liliaceae - Species:
- Avena sativa
- Plant group:
- Monocotyledonae (monocots)
- Details on test organisms:
- - Common name: oat
- Plant family: Poaceae - Species:
- Helianthus annuus
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: sunflower
- Plant family: Compositeae - Species:
- Lycopersicon esculentum
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: tomato
- Plant family: Solanaceae - Species:
- Pisum sativum
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: pea
- Plant family: Fabaceae - Species:
- Raphanus sativus
- Plant group:
- Dicotyledonae (dicots)
- Details on test organisms:
- - Common name: radish
- Plant family: Brassicaceae - Test type:
- vegetative vigour test
- Study type:
- laboratory study
- Substrate type:
- natural soil
- Limit test:
- no
- Total exposure duration:
- 21 d
- Details on test conditions:
- TEST SYSTEM
- Testing facility: growth chamber
- Test container (type, material, size): commercial plastic flower pots - 14 cm diameter
- Method of seeding: seeds were manually introduced
- No. of seeds per container: 5 (A. cepa and A.sativa) or 3 (all other species)
- No. of replicates per treatment group: 8 (A. cepa and A.sativa) or 14 (all other species)
- No. of replicates per control: 8 (A. cepa and A.sativa) or 14 (all other species)
SOURCE AND PROPERTIES OF SUBSTRATE (if soil)
- Soil type: sandy loam
- Organic carbon (%): 1.02 ± 0.17 %
GROWTH CONDITIONS
- Photoperiod: 16 hours light/8 hours dark
- Light intensity and quality: 5320-19240 lux
- Day/night temperatures: 22.51-25.34 ºC (day); 16.92-18.61 ºC (night)
- Relative humidity (%): 48.10-69.90 (day); 48.70-81.80 (night)
- Watering regime and schedules: daily when necessary via bottom watering through saucers
EFFECT PARAMETERS MEASURED:
- Fresh weight of all plants of a pot - 21 days after application
- Mortality - 21 days after application
- Phytotoxicity rating system (if used): EPPO Standard PP 1/135 - 7, 14 and 21 days after application
- Growth stages - on application day and 21 days after application
TEST CONCENTRATIONS
- Spacing factor for test concentrations: Monocots - 4; Dicots - 3
- Range finding study
- Results used to determine the conditions for the definitive study: yes - Nominal and measured concentrations:
- Dicots: 100, 300, 900, 2700, 8100, 24300 and 72900 g test material/ha
Monocots: 0.49, 1.98, 7.91, 32, 127, 506 and 2025 g test material/ha - Reference substance (positive control):
- no
- Key result
- Species:
- Allium cepa
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 821.07 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Lycopersicon esculentum
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 3 914.05 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Avena sativa
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 4 406.52 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Pisum sativum
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 32 308.33 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Raphanus sativus
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 258 027.45 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Key result
- Species:
- Helianthus annuus
- Duration:
- 21 d
- Dose descriptor:
- ER50
- Effect conc.:
- 136 379 g/ha
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- growth
- Details on results:
- Results of fresh weight measurements, mortality, phytotoxicity and plant growth are summarised in Table 2.
Fresh weights - A statistically significant reduction in fresh weights was observed at and above 127 g test material/ha for A. cepa at and above 900 g test material/ha onwards for L. esculentum, at and above 32 g test material/ha for A. sativa, 100 g test material/ha for P. sativum, 2700 g test material/ha for R. sativus and at and above 300 g test material/ha for H. annuus.
Mortality - Mortality was observed for A. cepa at 506 and 2025 g test material/ha (13 and 73 %). Mortality of A. cepa was statistically significant different from the controls at 2025 g as/ha. For all other plant species tested no mortality was observed.
Phytotoxicity - Phytotoxic effects were observed in all plant species and were mainly evident as growth reduction and chlorosis. In addition, necrosis was observed in L. esculentum, R. sativus and H. annuus.
The Effective Rates (based on fresh weights) are summarised in Table 2. - Validity criteria fulfilled:
- yes
- Conclusions:
- Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Allium cepa with an ER50 value of 821.07 g test material/ha. The ER50 values across all species ranged from 1 -258 kg test material/ha.
- Executive summary:
In a GLP compliant vegetative vigour test conducted in line with standardised guideline OECD 208, the effect of the test material on vegetative vigour over 21 days was determined. The effect of the test material on vegetative vigour in six species was tested at nominal concentrations of 0.49, 1.98, 7.91, 32, 127, 506 and 2025 g/ha (monocots) and 100, 300, 900, 2700, 8100, 24300 and 72900 g/ha (dicots). Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Allium cepa with an ER50 value of 821.07 g test material/ha.
Referenceopen allclose all
Table 2: Summarised resaults of fresh weight, germination, mortality, phytotoxicity and plant growth
Treatment (g/ha) | Germination (%) | Mortality (%) | Fresh wt (g) | Effect* (%) | Phytotoxicity (%) | Growth stage (BBCH) | |||
Species | 21DAA | 7DAA | 14DAA | 21DAA | |||||
A. sativa | Control | 95 | 0 | 8.32 | 0 | 0 | 0 | 0 | 13 |
13.11 | 93 | 0 | 8.09 | -2.73 | 0 | 0 | 1 | 13 | |
32.77 | 98 | 0 | 8.19 | -1.64 | 0 | 1 | 2 | 13 | |
81.92 | 90 | 3 | 5.11 | -38.57 | 0 | 5 | 17 | 13 | |
204.8 | 53 | 14 | 1.17 | -85.93 | 0 | 9 | 46 | 12 - 13 | |
512 | 0 | - | - | - | - | - | - | - | |
A. cepa | Control | 98 | 0 | 1.13 | 0 | 0 | 0 | 0 | 12 |
32.77 | 88 | 0 | 0.90 | -21.02 | 0 | 0 | 0 | 12 | |
81.92 | 90 | 0 | 0.70 | -37.98 | 0 | 0 | 0 | 12 | |
204.8 | 95 | 0 | 0.69 | -38.85 | 0 | 0 | 4 | 12 | |
512 | 83 | 0 | 0.45 | -60.69 | 0 | 2 | 11 | 11 - 12 | |
1280 | 60 | 21 | 0.03 | -97.53 | 0 | 12 | 60 | 012 - 11 | |
L. esculentum | Control | 95 | 0 | 8.45 | 0 | 0 | 0 | 0 | 13 |
81.92 | 98 | 0 | 8.00 | -5.32 | 0 | 0 | 0 | 13 | |
204.8 | 100 | 0 | 5.52 | -34.59 | 0 | 0 | 0 | 13 | |
512 | 95 | 0 | 4.63 | -45.19 | 0 | 0 | 3 | 13 | |
1280 | 60 | 0 | 1.32 | -84.39 | 0 | 5 | 28 | 12 | |
3200 | 0 | - | - | - | - | - | - | - | |
R. sativus | Control | 95 | 0 | 13.00 | 0 | 0 | 0 | 0 | 14 |
81.92 | 98 | 0 | 11.77 | -9.42 | 0 | 0 | 0 | 14 | |
204.8 | 93 | 0 | 11.18 | -13.95 | 0 | 0 | 0 | 14 | |
512 | 75 | 0 | 8.75 | -32.70 | 0 | 7 | 9 | 14 | |
1280 | 73 | 0 | 2.73 | -79.02 | 0 | 20 | 39 | 11 - 14 | |
3200 | 35 | 0 | 0.13 | -98.97 | 0 | 30 | 78 | 09 - 12 | |
P. sativum | Control | 100 | 0 | 13.25 | 0 | 0 | 0 | 0 | 16 |
81.92 | 98 | 0 | 13.84 | 4.47 | 0 | 0 | 0 | 16 | |
204.8 | 98 | 0 | 12.51 | -5.55 | 0 | 0 | 0 | 16 | |
512 | 95 | 0 | 11.75 | -11.31 | 0 | 0 | 0 | 16 | |
1280 | 70 | 0 | 6.93 | -47.72 | 0 | 4 | 13 | 15 | |
3200 | 10 | 0 | 0.39 | -97.06 | 0 | 22 | 67 | 10 - 14 | |
H. annuus | Control | 98 | 0 | 19.20 | 0 | 0 | 0 | 0 | 14 |
81.92 | 100 | 0 | 18.84 | -1.88 | 0 | 0 | 0 | 14 | |
204.8 | 100 | 0 | 18.90 | -1.58 | 0 | 0 | 0 | 14 | |
512 | 98 | 0 | 17.76 | -7.48 | 0 | 3 | 0 | 14 | |
1280 | 100 | 0 | 10.33 | -46.19 | 0 | 29 | 24 | 14 | |
3200 | 83 | 0 | 2.01 | -89.52 | 0 | 50 | 61 | 14 |
DAA = days after treatment
*negative vales mean the reduction compared to the control
Table 2: Effective Dose Rates
Species | NOER (g/ha) | LOER (g/ha) | ER25 (g/ha) | ER50 (g/ha) |
A. sativa | 32.77 | 81.92 | 65.31 | 100.31 |
A. cepa | 32.77 | 81.92 | 57.65 | 206.78 |
L. esculentum | 81.92 | 204.8 | 192.55 | 452.10 |
R. sativus | 81.92 | 204.8 | 353.50 | 659.78 |
P. sativum | 512 | 1280 | 802.31 | 1249.53 |
H. annuus | 512 | 1280 | 863.40 | 1365.04 |
Table 2: Summarised results of fresh weight, germination, mortality, phytotoxicity and plant growth
Treatment group (g/ha) | Mortality (%) | Fresh wt (g) | Effect* (%) | Phytotoxicity (%) | Growth stage (BBCH) | ||||
Species | 21DAA | 7DAA | 14DAA | 21DAA | At application | 21DDA | |||
A. cepa | Control | 0 | 14.63 | 0 | 0 | 0 | 0 | 12 | 15 |
1.98 | 0 | 12.25 | -16.25 | 0 | 0 | 0 | 15 | ||
7.91 | 0 | 12.35 | -15.59 | 0 | 0 | 0 | 15 | ||
32 | 0 | 12.61 | -13.79 | 0 | 0 | 0 | 15 | ||
127 | 0 | 12.08 | -17.46 | 1 | 1 | 0 | 15 | ||
506 | 13 | 10.87 | -25.67 | 3 | 16 | 17 | 14 - 15 | ||
2025 | 73 | 2.39 | -83.66 | 11 | 76 | 80 | 14 | ||
L. esculentum | Control | 0 | 40.82 | 0 | 0 | 0 | 0 | 14 | 17 |
100 | 0 | 41.10 | 0.69 | 0 | 0 | 0 | 17 | ||
300 | 0 | 40.70 | -0.28 | 0 | 0 | 0 | 17 | ||
900 | 0 | 34.93 | -14.43 | 0 | 3 | 2 | 17 | ||
2700 | 0 | 27.30 | -33.12 | 6 | 14 | 18 | 16 - 17 | ||
8100 | 0 | 9.69 | -76.25 | 25 | 45 | 74 | 15 - 16 | ||
A. sativa | Control | 0 | 31.04 | 0 | 0 | 0 | 0 | 13 | 16 |
0.49 | 0 | 30.27 | -2.50 | 0 | 0 | 0 | 16 | ||
1.98 | 0 | 32.24 | 3.85 | 0 | 0 | 0 | 16 | ||
7.91 | 0 | 30.05 | -3.22 | 0 | 0 | 0 | 16 | ||
32 | 0 | 25.32 | -18.42 | 0 | 0 | 1 | 16 | ||
127 | 0 | 25.10 | -19.13 | 0 | 3 | 2 | 16 | ||
P. sativum | Control | 0 | 17.38 | 0 | 0 | 0 | 0 | 14 | 70 |
100 | 0 | 14.80 | -14.84 | 0 | 0 | 0 | 70 | ||
300 | 0 | 14.22 | -18.20 | 0 | 0 | 0 | 70 | ||
900 | 0 | 12.84 | -26.10 | 0 | 0 | 0 | 70 | ||
2700 | 0 | 17.09 | -1.67 | 0 | 0 | 1 | 70 | ||
8100 | 0 | 14.59 | -16.07 | 0 | 5 | 3 | 67 | ||
24300 | 0 | 9.55 | -45.04 | 0 | 12 | 31 | 67 | ||
72900 | 0 | 5.15 | -70.35 | 0 | 28 | 53 | 39 - 63 | ||
R. sativus | Control | 0 | 11.35 | 0 | 0 | 0 | 13 - 14 | 15 | |
100 | 0 | 11.33 | -0.16 | 0 | 0 | 0 | 15 | ||
300 | 0 | 10.40 | -8.33 | 0 | 0 | 0 | 15 | ||
900 | 0 | 10.94 | -3.63 | 0 | 0 | 0 | 15 | ||
2700 | 0 | 8.96 | -21.03 | 4 | 9 | 10 | 14 - 15 | ||
8100 | 0 | 9.35 | -17.61 | 1 | 19 | 40 | 14 - 15 | ||
H. annuus | Control | 0 | 40.83 | 0 | 0 | 0 | 14 | 19 | |
100 | 0 | 39.18 | -4.04 | 0 | 0 | 0 | 19 | ||
300 | 0 | 37.60 | -7.89 | 0 | 0 | 0 | 19 | ||
900 | 0 | 36.25 | -11.21 | 0 | 3 | 0 | 18 - 19 | ||
2700 | 0 | 33.86 | -17.06 | 0 | 3 | 1 | 18 - 19 | ||
8100 | 0 | 30.52 | -25.25 | 7 | 18 | 24 | 18 - 19 |
DAA = days after treatment
*negative vales mean the reduction compared to the control
Table 2: Effective Dose Rates
Species | NOER (g/ha) | LOER (g/ha) | ER25 (g/ha) | ER50 (g/ha) |
A. cepa | 32 | 127 | 381.68 | 821.07 |
L. esculentum | 300 | 900 | 1827.46 | 3914.05 |
A. sativa | 7.9 | 32 | 229.49 | 4406.52 |
P. sativum | <100 | 100 | 8486.94 | 32,308.33 |
R. sativus | ≥8100 | >8100 | 15,273.50 | 258,027.45 |
H. annuus | 100 | 300 | 8191.79 | 136,379.00 |
Description of key information
The ER50 to the most sensitive species for seedling emergence, Avena sativa, was determined to be 100.31 g test material/ha according to a study performed in line with OECD Guideline 208.
The ER50 to the most sensitive species for vegetative vigour, Allium cepa, was determined to be 821.07 g test material/ha according to a study performed in line with OECD Guideline 208.
Key value for chemical safety assessment
Additional information
In a GLP compliant seedling emergence and seedling growth test conducted in line with standardised guideline OECD 208, the effect of the test material on seedling emergence and seedling growth over 21 days was determined. The effect of the test material on seedling emergence and seedling growth in six species was tested at nominal concentrations of 13.11, 32.77, 81.92, 204.8, 512, 1280 and 3200 g/ha. Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Avena sativa with an ER50 value of 100.31 g test material/ha.
In a GLP compliant vegetative vigour test conducted in line with standardised guideline OECD 208, the effect of the test material on vegetative vigour over 21 days was determined. The effect of the test material on vegetative vigour in six species was tested at nominal concentrations of 0.49, 1.98, 7.91, 32, 127, 506 and 2025 g/ha (monocots) and 100, 300, 900, 2700, 8100, 24300 and 72900 g/ha (dicots). Under the conditions of the test, the most sensitive species, based on terms of fresh weight reduction, is Allium cepa with an ER50 value of 821.07 g test material/ha.
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