Abstract
Poplar 69 (Populus deltoides Bartr. cv. ‘Lux’ (I-69/55)) was chosen for a pot experiment to study the growth and the extraction of Cd from soil to various parts of the one-year-old trees growing in upright and artificial leaning (45°) patterns under different Cd stress. The results indicated considerable tolerance of both upright poplar (UP) and leaning poplar (LP) to Cd stress in the soil, though with significant inhibition from Cd application. LP demonstrated significantly lower height and basal diameter growth than UP. Cd concentrations in different parts of both UP and LP increased with the increase of Cd in the soil and it followed a general order as Bark > Leaf > Root > Stem. Different parts of poplar had average bio-concentration factor (BCF) ranges between 0.08 to 2.36, and average translocation factor (TF) between 0.67 to 7.92, indicating a big difference of phytoextraction ability among the parts, among the treatments, and between LP and UP. Average Cd concentration, BCF, and TF for each part of LP were higher than that of UP, but the difference was not significant. Significantly higher Cd concentration was found in the tension zone of stem wood than that in the opposite zone for LP.
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Claims 8
Claim · model-written summary
Both upright and leaning poplar tolerated soil Cd stress, despite significant inhibition from Cd application.
- Treatment
- Cd applicatione0
- Outcome
- considerable tolerance of both upright poplar (UP) and leaning poplar (LP)e0
- Direction
- inhibitione0
PopulusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicated considerable tolerance of both upright poplar (UP) and leaning poplar (LP) to Cd stress in the soil, though with significant inhibition from Cd application.”
Claim · model-written summary
Leaning poplar had significantly lower height and basal diameter growth than upright poplar.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LP demonstrated significantly lower height and basal diameter growth than UP.”
t0“poplar”
t1“poplar”
Claim · model-written summary
Cd concentrations across poplar parts increased with soil Cd.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd concentrations in different parts of both UP and LP increased with the increase of Cd in the soil and it followed a general order as Bark > Leaf > Root > Stem.”
t0“poplar”
t1“poplar”
Claim · model-written summary
Cd concentrations generally ranked bark, leaf, root, then stem.
- Outcome
- Bark > Leaf > Root > Steme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it followed a general order as Bark > Leaf > Root > Stem.”
t0“poplar”
t1“poplar”
Claim · model-written summary
Poplar parts had average BCF values from 0.08 to 2.36.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Different parts of poplar had average bio-concentration factor (BCF) ranges between 0.08 to 2.36, and average translocation factor (TF) between 0.67 to 7.92”
Claim · model-written summary
Poplar parts had average TF values from 0.67 to 7.92.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Different parts of poplar had average bio-concentration factor (BCF) ranges between 0.08 to 2.36, and average translocation factor (TF) between 0.67 to 7.92”
Claim · model-written summary
Leaning poplar had higher average Cd concentration, BCF and TF than upright poplar, without a significant difference.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average Cd concentration, BCF, and TF for each part of LP were higher than that of UP, but the difference was not significant.”
t0“poplar”
t1“poplar”
Claim · model-written summary
Tension-zone stem wood in leaning poplar had significantly higher Cd than the opposite zone.
- Material
- LPe0
- Organ / stage
- tension zone of stem woode0
- Outcome
- Cd concentratione0
- Direction
- highere0
- Comparator
- opposite zonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly higher Cd concentration was found in the tension zone of stem wood than that in the opposite zone for LP.”
t0“poplar”
t1“poplar”
The same questions in other papers
cadmium atom · disease · Populus (poplar)Results agree
1 paper in the same direction as this paper
- negative
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.