Abstract
Soil accumulation with toxic metals and their transmition into agricultural products as a world problem is ever expanding. Cadmium (Cd) content of soil has increased due to luxury consumption of phosphorous fertilizers application which enters human food chain. In present study which was conducted in college of agriculture, Kerman University in 2010, the effects of chemical treatments namely salicylic (SA) at 0.1mM, silicon (Si) at 5 mM and SA+Si (0.1 mM and 5 mM) was studied on growth and development and cadmium accumulation in potato tubers grown under cadmium stress (0 and 12 mg/kg soil) in a pot experiment, using a factorial experiment with three replications. Compared with control treatment (No Cd), Cd decreased relative water content (RWC), photosynthetic and plant growth parameters. It also increased leaf malondialdehyde (MDA) and Cd accumulation in tubers. All chemical treatments improved plant performance under Cd stress and non-stress conditions and the effect of SA+Si was more pronounced for most recorded parameters. However, under Cd stress, combination of SA+Si increased tuber number (81%) , tuber fresh weight (112%), chlorophylls (50%) and decreased MDA (50%) and Cd accumulation in tubers (85%), relative to corresponding control and therefore, this treatment (SA+Si) can be commercially used to improve plant performance and reduce tuber Cd contents under field conditions.
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Claims 9
Claim · model-written summary
Cadmium decreased relative water content, photosynthetic parameters and growth in potato versus no cadmium.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- Cde0
- Outcome
- relative water content (RWC), photosynthetic and plant growth parameterse0
- Direction
- decreasede0
- Comparator
- control treatment (No Cd)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with control treatment (No Cd), Cd decreased relative water content (RWC), photosynthetic and plant growth parameters”
t0“Potato Plants”
Claim · model-written summary
Cadmium increased leaf MDA and tuber Cd accumulation.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Cde1
- Outcome
- leaf malondialdehyde (MDA) and Cd accumulation in tuberse0
- Direction
- increasede0
- Comparator
- control treatment (No Cd)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also increased leaf malondialdehyde (MDA) and Cd accumulation in tubers”
e1“Compared with control treatment (No Cd), Cd decreased”
t0“Potato Plants”
Claim · model-written summary
Chemical treatments improved potato performance with and without cadmium, especially SA+Si.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- SA+Sie0
- Outcome
- plant performancee0
- Direction
- improvede0
- Qualifier
- under Cd stress and non-stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All chemical treatments improved plant performance under Cd stress and non-stress conditions and the effect of SA+Si was more pronounced for most recorded parameters”
t0“Potato Plants”
Claim · model-written summary
Under Cd stress SA+Si increased tuber number by 81%.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combination of SA+Sie0
- Outcome
- tuber numbere0
- Direction
- increasede0
- Value
- 81%e0
- Qualifier
- under Cd stresse0
- Comparator
- corresponding controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under Cd stress, combination of SA+Si increased tuber number (81%)”
e1“relative to corresponding control”
t0“Potato Plants”
Claim · model-written summary
Under Cd stress SA+Si increased tuber fresh weight by 112%.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combination of SA+Sie0
- Outcome
- tuber fresh weighte0
- Direction
- increasede0
- Value
- 112%e0
- Qualifier
- under Cd stresse0
- Comparator
- corresponding controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under Cd stress, combination of SA+Si increased tuber number (81%) , tuber fresh weight (112%)”
e1“relative to corresponding control”
t0“Potato Plants”
Claim · model-written summary
Under Cd stress SA+Si increased chlorophylls by 50%.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combination of SA+Sie0
- Outcome
- chlorophyllse0
- Direction
- increasede0
- Value
- 50%e0
- Qualifier
- under Cd stresse0
- Comparator
- corresponding controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under Cd stress, combination of SA+Si increased tuber number (81%) , tuber fresh weight (112%), chlorophylls (50%)”
e1“relative to corresponding control”
t0“Potato Plants”
Claim · model-written summary
Under Cd stress SA+Si decreased MDA by 50%.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combination of SA+Sie0
- Outcome
- MDAe0
- Direction
- decreasede0
- Value
- 50%e0
- Qualifier
- under Cd stresse0
- Comparator
- corresponding controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under Cd stress, combination of SA+Si increased tuber number (81%) , tuber fresh weight (112%), chlorophylls (50%) and decreased MDA (50%)”
e1“relative to corresponding control”
t0“Potato Plants”
Claim · model-written summary
Under Cd stress SA+Si decreased tuber Cd accumulation by 85%.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combination of SA+Sie0
- Outcome
- Cd accumulation in tuberse0
- Direction
- decreasede0
- Value
- 85%e0
- Qualifier
- under Cd stresse0
- Comparator
- corresponding controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under Cd stress, combination of SA+Si increased tuber number (81%) , tuber fresh weight (112%), chlorophylls (50%) and decreased MDA (50%) and Cd accumulation in tubers (85%)”
e1“relative to corresponding control”
t0“Potato Plants”
Claim · model-written summary
Authors propose commercial use of SA+Si to improve performance and reduce tuber Cd in field conditions.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- SA+Sie0
- Outcome
- improve plant performance and reduce tuber Cd contentse0
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this treatment (SA+Si) can be commercially used to improve plant performance and reduce tuber Cd contents under field conditions”
t0“Potato Plants”
The same questions in other papers
cadmium atom · physiology: oxidative · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- positive
silicon atom · molecular: metabolites · Solanum tuberosum (potato)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →silicon atom · growth · Solanum tuberosum (potato)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
6 papers more in this group
See all 10 papers →salicylic acid · yield · Solanum tuberosum (potato)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
7 papers more in this group
See all 11 papers →salicylic acid · growth · Solanum tuberosum (potato)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
13 papers more in this group
See all 17 papers →silicon atom · physiology: oxidative · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
salicylic acid · nutrient: content · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- positive
salicylic acid · molecular: metabolites · Solanum tuberosum (potato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.