Abstract
Abstract The effects of several soil factors on cadmium (Cd) accumulation by plants were determined. Cadmium concentration in oat shoots ( Avena sativa L.) was decresaed by increasing the cation exchange capacity (CEC) of the soil. Except for its CEC effect, organic matter did not influence the concentration of Cd in oat shoots. The results indicate that the retaining power of organic matter for Cd is predominately through its CEC property rather than chelating ability. Cadmium concentration of soybean shoots ( Glycine max L.) increased with increased soil temperature. In the presence of 10 ppm of soil‐applied Cd, the addition of Zn from the 5 to 50 ppm range, apart from raising the Zn concentration, significantly increased the Cd concentration of soybean shoots. The increased Cd concentration was primarily due to decreased plant growth. A depression in Cd concentration of soybean shoots, relative to control, began to occur at the 100 ppm Zn level.
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Claims 8
Claim · model-written summary
Increasing soil cation exchange capacity decreased cadmium in oat shoots.
- Taxon
- oat
Avena sativae0 - Treatment
- increasing the cation exchange capacity (CEC) of the soile0
- Outcome
- Cadmium concentration in oat shootse0
- Direction
- decresaede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium concentration in oat shoots ( Avena sativa L.) was decresaed by increasing the cation exchange capacity (CEC) of the soil”
Claim · model-written summary
Organic matter had no effect on oat-shoot cadmium beyond its CEC effect.
- Taxon
- oatAvena sativae0
- Treatment
- organic mattere0
- Outcome
- concentration of Cd in oat shootse0
- Direction
- did not influencee0
- Qualifier
- Except for its CEC effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Except for its CEC effect, organic matter did not influence the concentration of Cd in oat shoots”
Claim · model-written summary
Organic matter retained Cd mainly through CEC rather than chelation.
- Outcome
- retaining power of organic matter for Cde0
- Qualifier
- its CEC property rather than chelating abilitye0
Not reportedTaxon
Verbatim
e0“retaining power of organic matter for Cd is predominately through its CEC property rather than chelating ability”
Claim · model-written summary
Higher soil temperature increased cadmium concentration in soybean shoots.
- Taxon
- soybean
Glycine maxe0 - Treatment
- increased soil temperaturee0
- Outcome
- Cadmium concentration of soybean shootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cadmium concentration of soybean shoots ( Glycine max L.) increased with increased soil temperature”
Claim · model-written summary
Adding 5–50 ppm Zn increased soybean-shoot Zn concentration in soil with 10 ppm Cd.
- Taxon
- soybeanGlycine maxe7
- Treatment
- addition of Zn from the 5 to 50 ppm rangee0
- Outcome
- Zn concentratione0
- Direction
- raisinge0
- Qualifier
- In the presence of 10 ppm of soil‐applied Cde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of 10 ppm of soil‐applied Cd, the addition of Zn from the 5 to 50 ppm range, apart from raising the Zn concentration, significantly increased the Cd concentration of soybean shoots”
e7“soybean shoots ( Glycine max L.)”
Claim · model-written summary
Adding 5–50 ppm Zn significantly increased soybean-shoot Cd concentration in soil with 10 ppm Cd.
- Taxon
- soybeanGlycine maxe0
- Treatment
- addition of Zn from the 5 to 50 ppm rangee0
- Outcome
- Cd concentration of soybean shootse0
- Direction
- increasede0
- Qualifier
- In the presence of 10 ppm of soil‐applied Cde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the presence of 10 ppm of soil‐applied Cd, the addition of Zn from the 5 to 50 ppm range, apart from raising the Zn concentration, significantly increased the Cd concentration of soybean shoots”
Claim · model-written summary
Reduced growth was the principal explanation for increased soybean-shoot Cd concentration.
- Taxon
- soybeanGlycine maxe7
- Outcome
- increased Cd concentratione0
- Qualifier
- decreased plant growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased Cd concentration was primarily due to decreased plant growth”
e7“soybean shoots ( Glycine max L.)”
Claim · model-written summary
At 100 ppm Zn, soybean-shoot Cd concentration was depressed relative to control.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 100 ppm Zne0
- Outcome
- Cd concentration of soybean shootse0
- Direction
- depressione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A depression in Cd concentration of soybean shoots, relative to control, began to occur at the 100 ppm Zn level”
The same questions in other papers
organic · molecular: metabolites · Avena sativa (oats)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.