Abstract
Pot experiment was conducted to study the tolerance and accumulation indexes of Brassica napus L.(Qinyou No.8) under different Cd concentration,and the remediation effect was enhanced by adding chelator..The results indicated that low concentration of Cd could increase the plant height,dry weight and chlorophyll contents of oilseed rape to some extent,and high concentration of Cd restrain the growth of oilseed rape.When Cd concentration were 80 mg/kg,the plant height,dry weight and chlorophyll total content of oilseed rape reduced by 20.5%,43.5% and 64.3% respectively compared with control.The proline content was positively correlated to the Cd concentration,reached the highest of 1571.6 μg/g,was 23 times higher than control,showed certain tolerance to Cd contaminated soil.The accumulation of Cd in roots was much higher than that in stems and leaves,the Cd contents in different parts of rape and total uptake Cd per pot were significantly increased with the increase of Cd in soil,reached the highest content when Cd concentration was 40 mg/kg,after that,the Cd content were descent.Chelator addition to soil significantly increased the Cd concentration of oilseed rape,but with high concentration chelator application,the seedlings died in a few days.The plant with the 6 mmol/kg chelator application had the higher efficiency of Cd phytoextraction.This study implied that Qinyou N0.8 is a promising crop to be used for phytoremediation on Cd contaminated soil.
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Claims 14
Claim · model-written summary
Low Cd increased oilseed rape height, dry weight and chlorophyll content.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Treatment
- low concentration of Cde0
- Outcome
- plant height,dry weight and chlorophyll contentse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“low concentration of Cd could increase the plant height,dry weight and chlorophyll contents of oilseed rape to some extent”
Claim · model-written summary
High Cd restrained oilseed rape growth.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- high concentration of Cde0
- Outcome
- growth of oilseed rapee0
- Direction
- restraine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high concentration of Cd restrain the growth of oilseed rape”
Claim · model-written summary
At 80 mg/kg Cd, plant height fell 20.5% from control.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- Cd concentration were 80 mg/kge0
- Outcome
- plant heighte0
- Direction
- reducede0
- Value
- 20.5%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cd concentration were 80 mg/kg,the plant height,dry weight and chlorophyll total content of oilseed rape reduced by 20.5%,43.5% and 64.3% respectively compared with control.”
Claim · model-written summary
At 80 mg/kg Cd, dry weight fell 43.5% from control.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- Cd concentration were 80 mg/kge0
- Outcome
- dry weighte0
- Direction
- reducede0
- Value
- 43.5%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cd concentration were 80 mg/kg,the plant height,dry weight and chlorophyll total content of oilseed rape reduced by 20.5%,43.5% and 64.3% respectively compared with control.”
Claim · model-written summary
At 80 mg/kg Cd, chlorophyll content fell 64.3% from control.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- Cd concentration were 80 mg/kge0
- Outcome
- chlorophyll total contente0
- Direction
- reducede0
- Value
- 64.3%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When Cd concentration were 80 mg/kg,the plant height,dry weight and chlorophyll total content of oilseed rape reduced by 20.5%,43.5% and 64.3% respectively compared with control.”
Claim · model-written summary
Proline content rose with Cd concentration, reaching 1571.6 μg/g and 23 times control.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- Cd concentratione0
- Outcome
- proline contente0
- Direction
- positively correlatede0
- Value
- 1571.6 μg/ge0
- Qualifier
- 23 times highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proline content was positively correlated to the Cd concentration,reached the highest of 1571.6 μg/g,was 23 times higher than control”
e1“Cd concentration of oilseed rape”
Claim · model-written summary
Root Cd accumulation was much higher than stem and leaf accumulation.
- Taxon
- oilseed rapeBrassica napuse1
- Organ / stage
- rootse0
- Outcome
- accumulation of Cd in rootse0
- Direction
- much highere0
- Comparator
- stems and leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of Cd in roots was much higher than that in stems and leaves”
e1“Cd concentration of oilseed rape”
Claim · model-written summary
Cd content in rape parts increased significantly as soil Cd rose, peaking at 40 mg/kg.
- Taxon
- rapeBrassica napuse0
- Treatment
- increase of Cd in soile0
- Outcome
- Cd contents in different parts of rapee0
- Direction
- significantly increasede0
- Value
- 40 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Cd contents in different parts of rape and total uptake Cd per pot were significantly increased with the increase of Cd in soil,reached the highest content when Cd concentration was 40 mg/kg”
Claim · model-written summary
Total Cd uptake per pot increased significantly with soil Cd and peaked at 40 mg/kg.
- Taxon
- rapeBrassica napuse0
- Treatment
- increase of Cd in soile0
- Outcome
- total uptake Cd per pote0
- Direction
- significantly increasede0
- Value
- 40 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Cd contents in different parts of rape and total uptake Cd per pot were significantly increased with the increase of Cd in soil,reached the highest content when Cd concentration was 40 mg/kg”
Claim · model-written summary
Above 40 mg/kg, Cd content declined.
- Taxon
- rapeBrassica napuse1
- Outcome
- Cd contente0
- Direction
- descente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“after that,the Cd content were descent.”
e1“different parts of rape”
Claim · model-written summary
Chelator addition significantly raised Cd concentration in oilseed rape.
- Taxon
- oilseed rapeBrassica napuse0
- Treatment
- Chelator addition to soile0
- Outcome
- Cd concentration of oilseed rapee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chelator addition to soil significantly increased the Cd concentration of oilseed rape”
Claim · model-written summary
High chelator application killed seedlings within a few days.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- high concentration chelator applicatione0
- Outcome
- seedlings diede0
- Qualifier
- in a few dayse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with high concentration chelator application,the seedlings died in a few days.”
e1“Cd concentration of oilseed rape”
Claim · model-written summary
The 6 mmol/kg chelator application had higher Cd phytoextraction efficiency.
- Taxon
- oilseed rapeBrassica napuse1
- Treatment
- 6 mmol/kg chelator applicatione0
- Outcome
- efficiency of Cd phytoextractione0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plant with the 6 mmol/kg chelator application had the higher efficiency of Cd phytoextraction.”
e1“Cd concentration of oilseed rape”
Claim · model-written summary
The authors identify Qinyou N0.8 as promising for phytoremediation of Cd-contaminated soil.
Verbatim
e0“This study implied that Qinyou N0.8 is a promising crop to be used for phytoremediation on Cd contaminated soil.”
The same questions in other papers
cadmium atom · physiology: pigments · Brassica napus (oilseed rape)Results differ
1 paper in the same direction as this paper · 6 in the opposite direction
- negative
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18 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
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See all 22 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.