Abstract
The toxicological and physiological effects of various concentrations of Cadmium (Cd) and Nickel (Ni) on the different growth and physiological parameters viz. dry weight, biomass accumulation, weight of onion bulb, diameter of onion bulb and chlorophyll content of Allium cepa at different stages of growth was studied. Three different concentrations viz. T1 (25 ppm), T2 (50 ppm) and T3 (100 ppm) of Cd and Ni were used along with T0 control plant. Negative correlation was observed between different growth parameters and increasing concentration of Cd and Ni at all stages of growth. Toxic effects of heavy metal uptake in plants was clearly visible with wilting of leaves, decrease in weight and size of the onion bulb, decrease in biomass accumulation, decrease in the overall chlorophyll content. The intensity of such decrease increased with passage of time and increase in heavy metal concentration. Maximum toxicological effects were seen on 70 Days after sowing (DAS). Ni was identified as a potential inhibitor of photosynthesis. It was also seen that heavy metals compete with micronutrients and inhibit their uptake thus disturbing the growth and physiology of the plants.
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Claims 9
Claim · model-written summary
Growth parameters of Allium cepa correlated negatively with increasing Cd and Ni concentration at all growth stages.
- Taxon
- Allium cepa
Allium cepae0 - Treatment
- increasing concentration of Cd and Nie7
- Outcome
- different growth parameterse7
- Direction
- Negative correlatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e7“Negative correlation was observed between different growth parameters and increasing concentration of Cd and Ni at all stages of growth”
Claim · model-written summary
Cd and Ni treatment decreased the weight and size of the onion bulb of Allium cepa compared with control.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- Cd and Nie1
- Outcome
- weight and size of the onion bulbe2
- Direction
- decreasee2
- Comparator
- T0 control plante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e1“Three different concentrations viz. T1 (25 ppm), T2 (50 ppm) and T3 (100 ppm) of Cd and Ni were used along with T0 control plant”
e2“Toxic effects of heavy metal uptake in plants was clearly visible with wilting of leaves, decrease in weight and size of the onion bulb, decrease in biomass accumulation, decrease in the overall chlorophyll content”
Claim · model-written summary
Cd and Ni treatment decreased biomass accumulation of Allium cepa compared with control.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- Cd and Nie1
- Outcome
- biomass accumulatione2
- Direction
- decreasee2
- Comparator
- T0 control plante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e1“Three different concentrations viz. T1 (25 ppm), T2 (50 ppm) and T3 (100 ppm) of Cd and Ni were used along with T0 control plant”
e2“Toxic effects of heavy metal uptake in plants was clearly visible with wilting of leaves, decrease in weight and size of the onion bulb, decrease in biomass accumulation, decrease in the overall chlorophyll content”
Claim · model-written summary
Cd and Ni treatment decreased the overall chlorophyll content of Allium cepa compared with control.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- Cd and Nie1
- Outcome
- overall chlorophyll contente2
- Direction
- decreasee2
- Comparator
- T0 control plante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e1“Three different concentrations viz. T1 (25 ppm), T2 (50 ppm) and T3 (100 ppm) of Cd and Ni were used along with T0 control plant”
e2“Toxic effects of heavy metal uptake in plants was clearly visible with wilting of leaves, decrease in weight and size of the onion bulb, decrease in biomass accumulation, decrease in the overall chlorophyll content”
Claim · model-written summary
Heavy metal uptake caused visible wilting of Allium cepa leaves.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- Cd and Nie1
- Outcome
- wilting of leavese2
- Comparator
- T0 control plante1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e1“Three different concentrations viz. T1 (25 ppm), T2 (50 ppm) and T3 (100 ppm) of Cd and Ni were used along with T0 control plant”
e2“Toxic effects of heavy metal uptake in plants was clearly visible with wilting of leaves, decrease in weight and size of the onion bulb, decrease in biomass accumulation, decrease in the overall chlorophyll content”
Claim · model-written summary
The intensity of toxic decrease increased with time and with heavy metal concentration.
- Taxon
- Allium cepaAllium cepae0
- Treatment
- increase in heavy metal concentratione3
- Outcome
- intensity of such decreasee3
- Direction
- increasede3
- Qualifier
- passage of timee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e3“The intensity of such decrease increased with passage of time and increase in heavy metal concentration”
Claim · model-written summary
Maximum toxicological effects on Allium cepa were seen at 70 days after sowing.
- Taxon
- Allium cepaAllium cepae0
- Organ / stage
- 70 Days after sowing (DAS)e4
- Outcome
- toxicological effectse4
- Qualifier
- Maximume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e4“Maximum toxicological effects were seen on 70 Days after sowing (DAS)”
Claim · model-written summary
Ni may inhibit photosynthesis in Allium cepa.
- Taxon
- Allium cepaAllium cepae0
- Compound
- Nie5
- Outcome
- photosynthesise5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e5“Ni was identified as a potential inhibitor of photosynthesis”
Claim · model-written summary
Heavy metals compete with micronutrients and inhibit their uptake in Allium cepa.
- Taxon
- Allium cepaAllium cepae0
- Outcome
- their uptakee6
- Qualifier
- compete with micronutrientse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content of Allium cepa at different stages of growth was studied”
e6“heavy metals compete with micronutrients and inhibit their uptake thus disturbing the growth and physiology of the plants”
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cadmium atom · growth · Allium cepa (onion)Results agree
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3 papers more in this group
See all 7 papers →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.