Abstract
Abstract Cadmium (Cd) is a non‐essential toxic element, which is highly accumulated by tobacco leaves and is transferred to tobacco smoke thus contributing substantially to the permitted level of Cd intake by humans. Therefore, measures to reduce Cd accumulation by tobacco are of significant importance. The purpose of the present study was to investigate the influence of soil liming on Cd uptake by tobacco plants in high Cd exposure. A pot experiment was conducted with Nicotiana tabacum L. Samsun 53 on an acid Typic Haploxeralf amended with refuse sugarbeet lime to obtain a pH range from 5.3 to 7.0 and contaminated with 20 mg kg‐1 Cd applied as CdCl2. Tobacco was grown in pots for three months under natural conditions, harvested in four cuts and Cd uptake by leaves was estimated. In soil samples selected, pH, Cd extracted by DTPA method, and Cd fractions such as exchangeable, organically bound, carbonate and residual were determined. The results showed that Cd uptake influenced negatively tobacco yield. Soil liming decreased Cd uptake by tobacco plants. The DTPA method was not a good indicator for Cd availability in tobacco. A very strong relationship was recorded between exchangeable Cd and total Cd uptake showing that this Cd fraction is available to tobacco plants. Soil pH was correlated strongly in a negative way with this Cd fraction suggesting that this soil factor is very important in controlling Cd accumulation by tobacco. Notes Corresponding author (e‐mail address: tsadilas@lar.forthnet.gr).
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Claims 5
Claim · model-written summary
Cadmium uptake negatively influenced tobacco yield.
- Taxon
- tobacco
Nicotiana tabacume0 - Compound
- Cd uptakee0
- Outcome
- tobacco yielde0
- Direction
- negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cd uptake influenced negatively tobacco yield.”
Claim · model-written summary
Soil liming decreased cadmium uptake by tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Soil liminge0
- Outcome
- Cd uptakee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil liming decreased Cd uptake by tobacco plants.”
Claim · model-written summary
DTPA extraction was a poor indicator of cadmium availability to tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- Cd availabilitye0
- Comparator
- DTPA methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The DTPA method was not a good indicator for Cd availability in tobacco.”
Claim · model-written summary
Exchangeable cadmium was strongly related to total cadmium uptake.
- Taxon
- tobaccoNicotiana tabacume0
- Compound
- exchangeable Cde0
- Outcome
- total Cd uptakee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A very strong relationship was recorded between exchangeable Cd and total Cd uptake showing that this Cd fraction is available to tobacco plants.”
Claim · model-written summary
Soil pH was strongly negatively correlated with exchangeable cadmium.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- Cd fractione0
- Direction
- negativee0
- Setting
- Soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH was correlated strongly in a negative way with this Cd fraction suggesting that this soil factor is very important in controlling Cd accumulation by tobacco.”
The same questions in other papers
lime · nutrient: content · Nicotiana tabacum (tobacco)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- 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.