Abstract
A pot experiment on soybean growth at different cadmium and phosphorus levels was conducted.The soybean was cultured at three levels of cadmium (0,5,20 mg/kg) and five levels of phosphorus (0,20,40,80,160 mg/kg) to investigate complex effects of cadmium and phosphorus on chlorophyll contents,SOD(superoxide dismutase)activities and MDA (malondialdehyde)contents in soybean leaves.And the experiment was also designed to discuss new ways to mitigate the toxicity of cadmium through phosphorus application.The results showed that cadmium addition inhibited growth of soybean;phosphorus application in the soil,however,counteracted the growth inhibition caused by cadmium to some extent.With increasing cadmium levels,chlorophyll contents and SOD activities decreased remarkably,and MDA contents increased significantly.Phosphorus application could,to some extent,heighten chlorophyll contents and SOD activities and depress MDA levels.In this experiment,80 mg/kg was the best application amount of phosphorus to the soil polluted with 5 mg/kg cadmium,and 160 mg/kg was the best application amount to the soil polluted with 20 mg/kg cadmium.So application of excess phosphorus (160 mg/kg) showed not to be more effective than others in the alleviation of cadmium toxicity to soybean.
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Claims 9
Claim · model-written summary
Cadmium addition inhibited soybean growth.
- Taxon
- soybean
Glycine maxe0 - Treatment
- cadmium additione0
- Outcome
- growth of soybeane0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cadmium addition inhibited growth of soybean”
Claim · model-written summary
Soil phosphorus application partly counteracted cadmium-induced soybean growth inhibition.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- phosphorus application in the soile0
- Outcome
- growth inhibitione0
- Direction
- counteractede0
- Qualifier
- to some extente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phosphorus application in the soil,however,counteracted the growth inhibition caused by cadmium to some extent”
t0“Soybean(Clycine max)”
Claim · model-written summary
Increasing cadmium levels decreased soybean leaf chlorophyll content and SOD activity.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- increasing cadmium levelse0
- Outcome
- chlorophyll contents and SOD activitiese0
- Direction
- decreasede0
Not reportedOrgan / stageComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing cadmium levels,chlorophyll contents and SOD activities decreased remarkably”
t0“Soybean(Clycine max)”
Claim · model-written summary
Increasing cadmium levels significantly increased soybean leaf MDA content.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- increasing cadmium levelse1
- Outcome
- MDA contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDA contents increased significantly”
e1“With increasing cadmium levels”
t0“Soybean(Clycine max)”
Claim · model-written summary
Phosphorus application partly increased soybean chlorophyll content and SOD activity.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Phosphorus applicatione0
- Outcome
- chlorophyll contents and SOD activitiese0
- Direction
- heightene0
- Qualifier
- to some extente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application could,to some extent,heighten chlorophyll contents and SOD activities”
t0“Soybean(Clycine max)”
Claim · model-written summary
Phosphorus application partly reduced soybean MDA levels.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Phosphorus applicatione0
- Outcome
- MDA levelse0
- Direction
- depresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus application could,to some extent,heighten chlorophyll contents and SOD activities and depress MDA levels”
t0“Soybean(Clycine max)”
Claim · model-written summary
At 5 mg/kg cadmium, 80 mg/kg phosphorus was the best application rate.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- best application amount of phosphoruse0
- Value
- 80 mg/kge0
- Qualifier
- soil polluted with 5 mg/kg cadmiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“80 mg/kg was the best application amount of phosphorus to the soil polluted with 5 mg/kg cadmium”
t0“Soybean(Clycine max)”
Claim · model-written summary
At 20 mg/kg cadmium, 160 mg/kg phosphorus was the best application rate.
- Taxon
- SoybeanGlycine maxt0
- Outcome
- best application amounte0
- Value
- 160 mg/kge0
- Qualifier
- soil polluted with 20 mg/kg cadmiume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“160 mg/kg was the best application amount to the soil polluted with 20 mg/kg cadmium”
t0“Soybean(Clycine max)”
Claim · model-written summary
Excess phosphorus at 160 mg/kg was no more effective than other rates in alleviating cadmium toxicity to soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- excess phosphorus (160 mg/kg)e0
- Outcome
- alleviation of cadmium toxicitye0
- Direction
- not to be more effectivee0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excess phosphorus (160 mg/kg) showed not to be more effective than others in the alleviation of cadmium toxicity to soybean”
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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.