Abstract
Tobacco (Nicotiana tabacum L.) can accumulate higher concentrations of cadmium (Cd). However, genotypic differences of tobacco cultivars in Cd uptake and their responses to Cd toxicity have not been thoroughly investigated. This study was conducted to determine the resistance of four tobacco cultivars to Cd toxicity under greenhouse conditions. Four doses of Cd (0, 5, 10 and 20 mg kg -1 soil) were used to test the resistance of tobacco cultivars. Increasing the Cd applications significantly (P < 0.01) decreased the shoot dry matter yields of genotypes, while shoot Cd concentration and content significantly (P < 0.01) increased. The highest decrease in dry matter under the highest Cd (Cd20) treatment was in zba (58.5% reduction), Birlik/124 (52.4% reduction) and Canik190/5 (51.1% reduction) cultivars, while the lowest decrease was in Xanthi/81 (44.6% reduction) cultivar. The amount of Cd removed from soil was significantly different among the tobacco cultivars. The highest Cd uptake was obtained in Cd20, while the lowest was in Xanthi/81 (395.2 g Cd plant -1 ) and Canik190/5 (232.6 g Cd plant -1 ) cultivars, respectively. The results revealed that Canik190/5 cultivar removes lower Cd compared to the other cultivars, whereas Cd uptake of Xanthi/81 cultivar is higher, thus is considered more resistant to Cd toxicity than other cultivars.
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Claims 12
Claim · model-written summary
Increasing cadmium applications significantly reduced tobacco shoot dry matter yield.
- Taxon
- Tobacco (Nicotiana tabacum L.)
Nicotiana tabacume1 - Organ / stage
- shoote0
- Treatment
- Increasing the Cd applicationse0
- Outcome
- shoot dry matter yieldse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the Cd applications significantly (P < 0.01) decreased the shoot dry matter yields of genotypes”
e1“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
Increasing cadmium applications significantly increased tobacco shoot cadmium concentration and content.
- Taxon
- Tobacco (Nicotiana tabacum L.)Nicotiana tabacume2
- Treatment
- Increasing the Cd applicationse1
- Outcome
- shoot Cd concentration and contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“shoot Cd concentration and content significantly (P < 0.01) increased”
e1“Increasing the Cd applications”
e2“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
At the highest cadmium dose, zba dry matter declined 58.5%.
- Taxon
- Tobacco (Nicotiana tabacum L.)Nicotiana tabacume1
- Material
- zbae0
- Treatment
- highest Cd (Cd20) treatmente0
- Outcome
- dry mattere0
- Direction
- decreasee0
- Value
- 58.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest decrease in dry matter under the highest Cd (Cd20) treatment was in zba (58.5% reduction)”
e1“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
At the highest cadmium dose, Birlik/124 dry matter declined 52.4%.
- Taxon
- Tobacco (Nicotiana tabacum L.)Nicotiana tabacume2
- Material
- Birlik/124e0
- Treatment
- highest Cd (Cd20) treatmente0
- Outcome
- dry mattere1
- Direction
- decreasee1
- Value
- 52.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under the highest Cd (Cd20) treatment was in zba (58.5% reduction), Birlik/124 (52.4% reduction)”
e1“The highest decrease in dry matter”
e2“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
At the highest cadmium dose, Canik190/5 dry matter declined 51.1%.
- Taxon
- Tobacco (Nicotiana tabacum L.)Nicotiana tabacume2
- Material
- Canik190/5e0
- Treatment
- highest Cd (Cd20) treatmente0
- Outcome
- dry mattere1
- Direction
- decreasee1
- Value
- 51.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under the highest Cd (Cd20) treatment was in zba (58.5% reduction), Birlik/124 (52.4% reduction) and Canik190/5 (51.1% reduction)”
e1“The highest decrease in dry matter”
e2“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
At the highest cadmium dose, Xanthi/81 had the smallest dry matter decline, 44.6%.
- Taxon
- Tobacco (Nicotiana tabacum L.)Nicotiana tabacume3
- Material
- Xanthi/81e0
- Treatment
- highest Cd (Cd20) treatmente1
- Outcome
- dry mattere2
- Direction
- lowest decreasee0
- Value
- 44.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest decrease was in Xanthi/81 (44.6% reduction) cultivar”
e1“highest Cd (Cd20) treatment”
e2“The highest decrease in dry matter”
e3“Tobacco (Nicotiana tabacum L.)”
Claim · model-written summary
Cadmium removed from soil differed significantly among tobacco cultivars.
- Taxon
- tobaccoNicotiana tabacume0
- Material
- cultivarse0
- Outcome
- amount of Cd removed from soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of Cd removed from soil was significantly different among the tobacco cultivars”
Claim · model-written summary
Cadmium uptake was highest under Cd20.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- Cd20e0
- Outcome
- Cd uptakee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest Cd uptake was obtained in Cd20”
e1“among the tobacco cultivars”
Claim · model-written summary
The Xanthi/81 cultivar had reported cadmium uptake of 395.2 g Cd plant -1.
- Taxon
- tobaccoNicotiana tabacume2
- Material
- Xanthi/81e0
- Outcome
- Cd uptakee1
- Value
- 395.2 g Cd plant -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Xanthi/81 (395.2 g Cd plant -1 )”
e1“The highest Cd uptake”
e2“among the tobacco cultivars”
Claim · model-written summary
The Canik190/5 cultivar had reported cadmium uptake of 232.6 g Cd plant -1.
- Taxon
- tobaccoNicotiana tabacume2
- Material
- Canik190/5e0
- Outcome
- Cd uptakee1
- Value
- 232.6 g Cd plant -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Canik190/5 (232.6 g Cd plant -1 )”
e1“The highest Cd uptake”
e2“among the tobacco cultivars”
Claim · model-written summary
Canik190/5 removed less cadmium than other tobacco cultivars.
- Taxon
- tobaccoNicotiana tabacume1
- Material
- Canik190/5e0
- Outcome
- Cde0
- Direction
- lowere0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Canik190/5 cultivar removes lower Cd compared to the other cultivars”
e1“among the tobacco cultivars”
Claim · model-written summary
Xanthi/81 cadmium uptake was higher and it was considered more cadmium resistant than other cultivars.
- Taxon
- tobaccoNicotiana tabacume1
- Material
- Xanthi/81e0
- Outcome
- Cd uptakee0
- Direction
- highere0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd uptake of Xanthi/81 cultivar is higher, thus is considered more resistant to Cd toxicity than other cultivars”
e1“among the tobacco cultivars”
The same questions in other papers
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- positive
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10 papers in the same direction as this paper · 1 in the opposite direction
- negative
- negative
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See all 12 papers →cadmium atom · yield · Nicotiana tabacum (tobacco)Results agree
2 papers in the same direction as this paper
- no effect
- 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.