Abstract
Elevated levels of heavy metals in contaminated soils are widely spread and concerns have been raised over the potential risks to humans, animals and agricultural crops. This study was conducted to evaluate the effect of mixed cadmium and copper on seed germination and seedling growth of coriander. Treatments were 0 (control), 25, 50, and 100 mg/kg which were made by equal amounts of cadmium (1/2) and copper (1/2). From the data obtained in the presence of different concentration of metals, Germination Index (GI), Metal Tolerance Index (MTI), and Percent Phytotoxicity was calculated. Increasing the concentration of heavy metal mixture to 100 mg/kg showed a significant decrease in seed germination as compared to control treatment (p<0.01). Heavy metal mixture concentrations of 25 mg/kg increased seedling fresh and dry weight (p<0.01) as compared to control. However, the heavy metal mixture concentration of 100 mg/kg produced the lowest amount of both seedling fresh and dry weight. A negative response of root and shoot length of coriander to heavy metal mixture application relative to control treatment was observed at 100 mg/kg (p<0.01). The study suggests that cultivation of coriander in metal polluted soils should be avoided or appropriate control measures be adopted to maintain the heavy metal content of the soil below the damage threshold level.
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Claims 6
Claim · model-written summary
A 100 mg/kg heavy metal mixture significantly decreased coriander seed germination relative to control.
- Taxon
- coriander
Coriandrum sativume1 - Treatment
- heavy metal mixture to 100 mg/kge0
- Outcome
- seed germinatione0
- Direction
- decreasee0
- Value
- 100 mg/kge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the concentration of heavy metal mixture to 100 mg/kg showed a significant decrease in seed germination as compared to control treatment (p<0.01).”
e1“seed germination and seedling growth of coriander”
Claim · model-written summary
A 25 mg/kg heavy metal mixture increased coriander seedling fresh weight relative to control.
- Taxon
- corianderCoriandrum sativume1
- Treatment
- Heavy metal mixture concentrations of 25 mg/kge0
- Outcome
- seedling freshe0
- Direction
- increasede0
- Value
- 25 mg/kge0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy metal mixture concentrations of 25 mg/kg increased seedling fresh and dry weight (p<0.01) as compared to control.”
e1“seed germination and seedling growth of coriander”
Claim · model-written summary
A 25 mg/kg heavy metal mixture increased coriander seedling dry weight relative to control.
- Taxon
- corianderCoriandrum sativume1
- Treatment
- Heavy metal mixture concentrations of 25 mg/kge0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 25 mg/kge0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Heavy metal mixture concentrations of 25 mg/kg increased seedling fresh and dry weight (p<0.01) as compared to control.”
e1“seed germination and seedling growth of coriander”
Claim · model-written summary
The 100 mg/kg heavy metal mixture produced the lowest coriander seedling fresh and dry weights.
- Taxon
- corianderCoriandrum sativume1
- Treatment
- heavy metal mixture concentration of 100 mg/kge0
- Outcome
- seedling fresh and dry weighte0
- Direction
- loweste0
- Value
- 100 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the heavy metal mixture concentration of 100 mg/kg produced the lowest amount of both seedling fresh and dry weight.”
e1“seed germination and seedling growth of coriander”
Claim · model-written summary
At 100 mg/kg, the heavy metal mixture negatively affected coriander root and shoot length relative to control.
- Taxon
- corianderCoriandrum sativume0
- Treatment
- heavy metal mixture applicatione0
- Outcome
- root and shoot lengthe0
- Direction
- negative responsee0
- Value
- 100 mg/kge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A negative response of root and shoot length of coriander to heavy metal mixture application relative to control treatment was observed at 100 mg/kg (p<0.01).”
Claim · model-written summary
The authors advise avoiding cultivation of coriander in metal polluted soils or keeping soil metals below the damage threshold.
- Taxon
- corianderCoriandrum sativume0
- Outcome
- cultivation of coriander in metal polluted soils should be avoided or appropriate control measures be adoptede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivation of coriander in metal polluted soils should be avoided or appropriate control measures be adopted to maintain the heavy metal content of the soil below the damage threshold level.”
The same questions in other papers
heavy metal · growth · Coriandrum sativum (coriander)Positive and negative results
1 in the opposite direction
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.