Abstract
Lead (Pb) and cadmium (Cd) are known to influence each other’s uptake by plants when they coexist in the soil in significant amounts. This influence can be useful if it is antagonistic but may be detrimental if synergistic. In a screenhouse, interactive effects of soil Cd (0, 10, 25, 50 and 100 mg kg-1) and Pb (0, 25, 50, 100 and 200 mg kg-1) were studied on dry matter yield (DMY), Cd and Pb content in Indian mustard (Brassica juncea (L.) Czern) grown for 60 days in a loamy sand soil. The DMY was recorded and plants were analyzed for total Cd and Pb contents. In equilibrated soil there was significant increase in the mean DTPA-Cd and DTPA-Pb with increase in levels of their respective spiking. The content of DTPA-Cd increased significantly where different combinations of Cd and Pb were applied whereas, DTPA-Pb significantly decreased when Pb was applied in combination with Cd. At Cd+200 mg Pb kg-1 soil and Pb+100 mg Cd kg-1 soil, the mean shoot DMY of Indian mustard decreased by 55.8 and 57.7 per cent, respectively as compared to control. The mean shoot Cd content of Indian mustard increased by 9.9 per cent with application of Cd+200 mg Pb kg-1 soil while the mean Pb content decreased by 10.4 per cent with application of Pb+100 mg Cd kg-1 soil as compared to their respective single treatments. The post-harvest soil DTPA-Cd and Pb decreased as compared to their pre-sowing contents but considerable residual contents still remained in soil. An additive adverse effect of the metals on DMY, Pb and Cd content of the crop was observed.
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Claims 10
Claim · model-written summary
DTPA-extractable cadmium increased significantly with cadmium spiking.
- Taxon
- Indian mustard
Brassica junceae1 - Treatment
- Cde0
- Outcome
- DTPA-Cde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In equilibrated soil there was significant increase in the mean DTPA-Cd and DTPA-Pb with increase in levels of their respective spiking.”
e1“Indian mustard (Brassica juncea (L.) Czern)”
Claim · model-written summary
DTPA-extractable lead increased significantly with lead spiking.
- Taxon
- Indian mustardBrassica junceae1
- Treatment
- Pbe0
- Outcome
- DTPA-Pbe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In equilibrated soil there was significant increase in the mean DTPA-Cd and DTPA-Pb with increase in levels of their respective spiking.”
e1“Indian mustard (Brassica juncea (L.) Czern)”
Claim · model-written summary
Combined cadmium and lead increased soil DTPA-Cd significantly.
- Taxon
- Indian mustardBrassica junceae1
- Treatment
- different combinations of Cd and Pbe0
- Outcome
- DTPA-Cde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of DTPA-Cd increased significantly where different combinations of Cd and Pb were applied”
e1“Indian mustard (Brassica juncea (L.) Czern)”
Claim · model-written summary
Adding cadmium with lead significantly decreased soil DTPA-Pb.
- Taxon
- Indian mustardBrassica junceae1
- Treatment
- Pb was applied in combination with Cde0
- Outcome
- DTPA-Pbe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DTPA-Pb significantly decreased when Pb was applied in combination with Cd.”
e1“Indian mustard (Brassica juncea (L.) Czern)”
Claim · model-written summary
At Cd plus 200 mg Pb/kg soil, Indian mustard shoot dry matter yield fell 55.8% relative to control.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- Cd+200 mg Pb kg-1 soile0
- Outcome
- mean shoot DMYe0
- Direction
- decreasede0
- Value
- 55.8e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At Cd+200 mg Pb kg-1 soil and Pb+100 mg Cd kg-1 soil, the mean shoot DMY of Indian mustard decreased by 55.8 and 57.7 per cent, respectively as compared to control.”
Claim · model-written summary
At Pb plus 100 mg Cd/kg soil, Indian mustard shoot dry matter yield fell 57.7% relative to control.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- Pb+100 mg Cd kg-1 soile0
- Outcome
- mean shoot DMYe0
- Direction
- decreasede0
- Value
- 57.7 per cente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At Cd+200 mg Pb kg-1 soil and Pb+100 mg Cd kg-1 soil, the mean shoot DMY of Indian mustard decreased by 55.8 and 57.7 per cent, respectively as compared to control.”
Claim · model-written summary
With Cd plus 200 mg Pb/kg soil, mustard shoot Cd content increased 9.9% versus its single treatment.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- Cd+200 mg Pb kg-1 soile0
- Outcome
- mean shoot Cd contente0
- Direction
- increasede0
- Value
- 9.9 per cente0
- Comparator
- respective single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean shoot Cd content of Indian mustard increased by 9.9 per cent with application of Cd+200 mg Pb kg-1 soil while the mean Pb content decreased by 10.4 per cent with application of Pb+100 mg Cd kg-1 soil as compared to their respective single treatments.”
Claim · model-written summary
With Pb plus 100 mg Cd/kg soil, mustard shoot Pb content decreased 10.4% versus its single treatment.
- Taxon
- Indian mustardBrassica junceae0
- Treatment
- Pb+100 mg Cd kg-1 soile0
- Outcome
- mean Pb contente0
- Direction
- decreasede0
- Value
- 10.4 per cente0
- Comparator
- respective single treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean shoot Cd content of Indian mustard increased by 9.9 per cent with application of Cd+200 mg Pb kg-1 soil while the mean Pb content decreased by 10.4 per cent with application of Pb+100 mg Cd kg-1 soil as compared to their respective single treatments.”
Claim · model-written summary
Postharvest soil DTPA-Cd and Pb fell from presowing contents, though substantial residue remained.
- Taxon
- Indian mustardBrassica junceae1
- Outcome
- post-harvest soil DTPA-Cd and Pbe0
- Direction
- decreasede0
- Qualifier
- considerable residual contents still remained in soile0
- Comparator
- pre-sowing contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The post-harvest soil DTPA-Cd and Pb decreased as compared to their pre-sowing contents but considerable residual contents still remained in soil.”
e1“Indian mustard (Brassica juncea (L.) Czern)”
Claim · model-written summary
The authors observed an additive adverse effect of the metals on mustard dry matter yield and metal content.
- Taxon
- Indian mustardBrassica junceae1
- Outcome
- DMY, Pb and Cd content of the crope0
- Qualifier
- additive adverse effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An additive adverse effect of the metals on DMY, Pb and Cd content of the crop was observed.”
e1“Indian mustard (Brassica juncea (L.) Czern)”
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See all 5 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.