Paper · 2014 · Communications in Soil Science and Plant Analysis

Influence of Exogenous Application of Silicon and Potassium on Physiological Responses, Yield, and Yield Components of Salt-Stressed Wheat

Ahmad Bybordi

9
claims
21
verbatim quotes
35
citations
2
research areas
—
Not open access

Abstract

To investigate the effect of exogenous application of silicon and potassium on some physiological responses, yield, and yield components of two wheat cultivars (Pishgam and Alvand) grown under salt-stress conditions, a field experiment was conducted at the Agricultural and Natural Resources Research Centre in East Azerbaijan, Iran, during 2012 and 2013 growing seasons. The experiment was arranged in factorial design based on randomized complete blocks design with three replications in each year. Wheat seeds were sown in saline soil (10 dS m−1) and irrigated with saline water (4 dS m−1). The plants were sprayed with silicon and potassium solutions at 0, 2, and 4 mM and 0, 100, 200, and 300 mM concentrations, respectively. The results demonstrated that silicon and potassium application improved antioxidant enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components in both wheat cultivars. Although silicon and potassium had significant effects on all studied traits, there was a great interactive effect between them. When these two elements were applied on plants, the positive effect was more pronounced. Among all treatments, the most effective treatment was 4 mM silicon and 300 mM potassium. The greatest enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components and the lowest proline, malondialdehyde, and sodium accumulations were observed in this treatment.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon and potassium application improved antioxidant enzyme activity, chlorophyll content and photosynthesis rate in wheat.

Treatment
silicon and potassium applicatione0
Outcome
antioxidant enzyme activity, chlorophyll content, photosynthesis ratee0
Direction
improvede0
Setting
East Azerbaijan, Irane5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“silicon and potassium application improved antioxidant enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components in both wheat cultivars”

✓ located verbatim in the source · abstract, characters 761–944 · show in text ↑
e5

“a field experiment was conducted at the Agricultural and Natural Resources Research Centre in East Azerbaijan, Iran, during 2012 and 2013 growing seasons”

✓ located verbatim in the source · abstract, characters 217–370 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon and potassium application improved potassium uptake, yield and yield components in wheat.

Treatment
silicon and potassium applicatione0
Outcome
potassium uptake, yield, and yield componentse0
Direction
improvede0
Setting
East Azerbaijan, Irane5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“silicon and potassium application improved antioxidant enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components in both wheat cultivars”

✓ located verbatim in the source · abstract, characters 761–944 · show in text ↑
e5

“a field experiment was conducted at the Agricultural and Natural Resources Research Centre in East Azerbaijan, Iran, during 2012 and 2013 growing seasons”

✓ located verbatim in the source · abstract, characters 217–370 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Silicon and potassium had significant effects on all studied traits of wheat.

Treatment
silicon and potassiume1
Outcome
all studied traitse1

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e1

“Although silicon and potassium had significant effects on all studied traits, there was a great interactive effect between them”

✓ located verbatim in the source · abstract, characters 946–1073 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon and potassium showed a strong interactive effect in wheat.

Treatment
silicon and potassiume1
Outcome
interactive effecte1

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e1

“Although silicon and potassium had significant effects on all studied traits, there was a great interactive effect between them”

✓ located verbatim in the source · abstract, characters 946–1073 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The positive effect of silicon and potassium was more pronounced when both elements were applied together.

Treatment
these two elementse2
Outcome
positive effecte2
Direction
more pronouncede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“silicon and potassium application improved antioxidant enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components in both wheat cultivars”

✓ located verbatim in the source · abstract, characters 761–944 · show in text ↑
e2

“When these two elements were applied on plants, the positive effect was more pronounced”

✓ located verbatim in the source · abstract, characters 1075–1162 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The 4 mM silicon and 300 mM potassium treatment was the most effective treatment in wheat.

Treatment
4 mM silicon and 300 mM potassiume3
Outcome
most effective treatmente3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e3

“Among all treatments, the most effective treatment was 4 mM silicon and 300 mM potassium”

✓ located verbatim in the source · abstract, characters 1164–1252 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 4 mM silicon and 300 mM potassium treatment gave the greatest enzyme activity, chlorophyll content and photosynthesis rate of wheat.

Treatment
4 mM silicon and 300 mM potassiume3
Outcome
enzyme activity, chlorophyll content, photosynthesis ratee4
Direction
greateste4
Comparator
all treatmentse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e3

“Among all treatments, the most effective treatment was 4 mM silicon and 300 mM potassium”

✓ located verbatim in the source · abstract, characters 1164–1252 · show in text ↑
e4

“The greatest enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components and the lowest proline, malondialdehyde, and sodium accumulations were observed in this treatment”

✓ located verbatim in the source · abstract, characters 1254–1469 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 4 mM silicon and 300 mM potassium treatment gave the greatest potassium uptake, yield and yield components of wheat.

Treatment
4 mM silicon and 300 mM potassiume3
Outcome
potassium uptake, yield, and yield componentse4
Direction
greateste4
Comparator
all treatmentse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e3

“Among all treatments, the most effective treatment was 4 mM silicon and 300 mM potassium”

✓ located verbatim in the source · abstract, characters 1164–1252 · show in text ↑
e4

“The greatest enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components and the lowest proline, malondialdehyde, and sodium accumulations were observed in this treatment”

✓ located verbatim in the source · abstract, characters 1254–1469 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 4 mM silicon and 300 mM potassium treatment gave the lowest proline, malondialdehyde and sodium accumulation in wheat.

Treatment
4 mM silicon and 300 mM potassiume3
Outcome
proline, malondialdehyde, and sodium accumulationse4
Direction
loweste4
Comparator
all treatmentse3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Salt-Stressed Wheat”

✓ located verbatim in the source · title, characters 119–138 · show in text ↑
e3

“Among all treatments, the most effective treatment was 4 mM silicon and 300 mM potassium”

✓ located verbatim in the source · abstract, characters 1164–1252 · show in text ↑
e4

“The greatest enzyme activity, chlorophyll content, photosynthesis rate, potassium uptake, yield, and yield components and the lowest proline, malondialdehyde, and sodium accumulations were observed in this treatment”

✓ located verbatim in the source · abstract, characters 1254–1469 · show in text ↑

silicon atom · physiology: oxidative · Triticum aestivum (wheat)Results differ

41 papers: 40 positive, 1 negative or no effect

39 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

37 papers more in this group

See all 41 papers →

silicon atom · yield · Triticum aestivum (wheat)Results differ

90 papers: 85 positive, 5 negative or no effect

84 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. no effect
  3. no effect

86 papers more in this group

See all 90 papers →

silicon atom · soil: biology · Triticum aestivum (wheat)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

potassium · soil: biology · Triticum aestivum (wheat)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. no effect
  2. negative
See all 3 papers →

potassium · yield · Triticum aestivum (wheat)Positive and negative results

257 papers: 227 positive, 30 negative or no effect

226 papers in the same direction as this paper · 29 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

253 papers more in this group

See all 257 papers →

potassium · physiology: oxidative · Triticum aestivum (wheat)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 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.