Paper · 2004 · Soil Science Society of America Journal

Salinity and Zinc Application Effects on Phytoavailability of Cadmium and Zinc

A. H. Khoshgoftar; H. Shariatmadari; N. Karimian; et al.

8
claims
15
verbatim quotes
102
citations
1
research areas
—
Not open access

Abstract

Salinity and Zn deficiency in soils are two factors that may change the phytoavailability of Zn and Cd. The aim of this study was to determine the effects of salinity and Zn application on soil Cd and Zn solubility and their concentration in wheat shoots. A greenhouse experiment with wheat ( Triticum aestivum L. cv. Rushan) consisting of two levels of Zn (0 and 15 mg Zn kg −1 , in the form of ZnSO 4 ), and five salinity levels of irrigation water (0, 60, 120, and 180 m M NaCl, and 120 m M NaNO 3 ) in triplicate was conducted. Wheat was seeded in pots. After 45 d of growth, the shoots were harvested, and Zn and Cd concentrations were determined. After harvesting, electrical conductivity (EC), pH, and concentrations of anions and cations were determined in soil saturation extracts. Concentrations of Cd and Zn species in soil solution were predicted using the speciation program MINTEQA2. Increasing salinity increased total Cd (Cd T ), Cd 2+ , CdCl + , CdHCO 3 + , and CdCl 2 0 concentrations in the soil solution, whereas no such effect was found for the NaNO 3 treatment. Higher salinity decreased the total Zn (Zn T ) and free Zn 2+ concentrations in the soil solution and decreased Zn concentrations in the wheat shoots. With application of Zn fertilizer, shoot Cd concentrations decreased by 11 to 90%, whereas Zn concentration increased by 75 to 103%. Increasing salinity of irrigation water decreased shoot dry matter, especially if no ZnSO 4 was applied. Application of Zn had a positive effect on salt tolerance of plant and increased dry matter of shoot.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

Increasing salinity raised several soil cadmium species, unlike NaNO3 treatment.

Treatment
Increasing salinitye0
Outcome
concentrations in the soil solutione0
Direction
increasede0

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

“Increasing salinity increased total Cd (Cd T ), Cd 2+ , CdCl + , CdHCO 3 + , and CdCl 2 0 concentrations in the soil solution, whereas no such effect was found for the NaNO 3 treatment.”

✓ located verbatim in the source · abstract, characters 898–1083 · show in text ↑
e1

“in wheat shoots”

✓ located verbatim in the source · abstract, characters 239–254 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Higher salinity lowered total and free zinc in soil solution.

Treatment
Higher salinitye0
Outcome
concentrations in the soil solutione0
Direction
decreasede0

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

“Higher salinity decreased the total Zn (Zn T ) and free Zn 2+ concentrations in the soil solution”

✓ located verbatim in the source · abstract, characters 1084–1181 · show in text ↑
e1

“the wheat shoots”

✓ located verbatim in the source · abstract, characters 1217–1233 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher salinity lowered zinc concentration in wheat shoots.

Treatment
Higher salinitye0
Outcome
Zn concentrations in the wheat shootse0
Direction
decreasede0

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

“Higher salinity decreased the total Zn (Zn T ) and free Zn 2+ concentrations in the soil solution and decreased Zn concentrations in the wheat shoots.”

✓ located verbatim in the source · abstract, characters 1084–1234 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc fertilizer lowered shoot cadmium concentrations by 11 to 90%.

Treatment
application of Zn fertilizere0
Outcome
shoot Cd concentrationse0
Direction
decreasede0
Value
11 to 90%e0

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

“With application of Zn fertilizer, shoot Cd concentrations decreased by 11 to 90%, whereas Zn concentration increased by 75 to 103%.”

✓ located verbatim in the source · abstract, characters 1235–1367 · show in text ↑
e1

“concentration in wheat shoots”

✓ located verbatim in the source · abstract, characters 225–254 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc fertilizer raised shoot zinc concentration by 75 to 103%.

Treatment
application of Zn fertilizere0
Outcome
Zn concentratione0
Direction
increasede0
Value
75 to 103%e0

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

“With application of Zn fertilizer, shoot Cd concentrations decreased by 11 to 90%, whereas Zn concentration increased by 75 to 103%.”

✓ located verbatim in the source · abstract, characters 1235–1367 · show in text ↑
e1

“concentration in wheat shoots”

✓ located verbatim in the source · abstract, characters 225–254 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing irrigation water salinity lowered shoot dry matter, particularly without zinc sulfate.

Treatment
Increasing salinity of irrigation watere0
Outcome
shoot dry mattere0
Direction
decreasede0
Qualifier
especially if no ZnSO 4 was appliede0

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

“Increasing salinity of irrigation water decreased shoot dry matter, especially if no ZnSO 4 was applied.”

✓ located verbatim in the source · abstract, characters 1368–1472 · show in text ↑
e1

“in wheat shoots”

✓ located verbatim in the source · abstract, characters 239–254 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc application increased shoot dry matter.

Treatment
Application of Zne0
Outcome
dry matter of shoote0
Direction
increasede0

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

“Application of Zn had a positive effect on salt tolerance of plant and increased dry matter of shoot.”

✓ located verbatim in the source · abstract, characters 1473–1574 · show in text ↑
e1

“in wheat shoots”

✓ located verbatim in the source · abstract, characters 239–254 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc application improved salt tolerance.

Treatment
Application of Zne0
Outcome
salt tolerancee0
Direction
positive effecte0

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

“Application of Zn had a positive effect on salt tolerance of plant and increased dry matter of shoot.”

✓ located verbatim in the source · abstract, characters 1473–1574 · show in text ↑
e1

“in wheat shoots”

✓ located verbatim in the source · abstract, characters 239–254 · show in text ↑

zinc atom · growth · Triticum aestivum (wheat)Results differ

200 papers: 155 positive, 45 negative or no effect

154 papers in the same direction as this paper · 43 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. positive
  3. no effect

196 papers more in this group

See all 200 papers →

zinc atom · nutrient: content · Triticum aestivum (wheat)Results differ

380 papers: 347 positive, 33 negative or no effect

346 papers in the same direction as this paper · 33 in the opposite direction

  1. no effect
  2. positive
  3. positive

376 papers more in this group

See all 380 papers →

zinc atom · tolerance: abiotic · Triticum aestivum (wheat)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

salinity · nutrient: content · Triticum aestivum (wheat)Positive and negative results

85 papers: 19 positive, 66 negative or no effect

65 papers in the same direction as this paper · 19 in the opposite direction

  1. negative
  2. negative
  3. positive

81 papers more in this group

See all 85 papers →

irrigation · growth · Triticum aestivum (wheat)Positive and negative results

242 papers: 177 positive, 65 negative or no effect

64 papers in the same direction as this paper · 177 in the opposite direction

  1. positive
  2. positive
  3. positive

238 papers more in this group

See all 242 papers →

salinity · growth · Triticum aestivum (wheat)Positive and negative results

377 papers: 49 positive, 328 negative or no effect

327 papers in the same direction as this paper · 49 in the opposite direction

  1. negative
  2. positive
  3. positive

373 papers more in this group

See all 377 papers →

fertilization · nutrient: content · Triticum aestivum (wheat)Positive and negative results

959 papers: 854 positive, 105 negative or no effect

853 papers in the same direction as this paper · 95 in the opposite direction · 10 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

955 papers more in this group

See all 959 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.