Paper · 2016 · Pesquisa Agropecuária Tropical

Application of super absorbent polymer and ascorbic acid to mitigate deleterious effects of cadmium in wheat

Hamid Reza Tohidi Moghadam

17
claims
34
verbatim quotes
25
citations
2
research areas
✓
Open access · cc-by

Abstract

ABSTRACT The growing use of chemical fertilizers, insecticides and pesticides can cause potential contamination with heavy metals to soil and groundwater, posing environmental and health threats. Heavy metals can also affect crop yield. A greenhouse experiment was conducted to explore the role of ascorbic acid foliar application and soil-applied super absorbent to mitigate adverse effects of cadmium (Cd), in terms of biochemical parameters in wheat. The experiment was installed in a completely randomized design, with treatments arranged in a factorial scheme with three levels of super absorbent polymer (0 g kg-1, 4 g kg-1 and 8 g kg-1 of soil) by three levels of ascorbic acid (0 mM, 50 mM and 100 mM), with four replicates. The Cd contamination caused a significant increase in the accumulation of Cd in leaves and seeds, as well as in antioxidant enzymes activity and lipid peroxidation. It also decreased seed weight and chlorophyll content in wheat plants. The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %). Similar results were found when ascorbic acid was applied. Ascorbic acid increased seed yield, seed weight and chlorophyll content by 12.62 %, 17.66 % and 13.17 %, respectively. As a result, the super absorbent polymer and ascorbic acid could improve the survival capacity and yield of wheat plants in response to Cd contamination in the soil.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 17

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cadmium contamination increased accumulation of Cd in leaves.

Treatment
Cd contaminatione0
Outcome
accumulation of Cd in leavese0
Direction
increasee0

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

“The Cd contamination caused a significant increase in the accumulation of Cd in leaves and seeds, as well as in antioxidant enzymes activity and lipid peroxidation.”

✓ located verbatim in the source · abstract, characters 733–897 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cadmium contamination increased seeds.

Treatment
Cd contaminatione0
Outcome
seedse0
Direction
increasee0

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

“The Cd contamination caused a significant increase in the accumulation of Cd in leaves and seeds, as well as in antioxidant enzymes activity and lipid peroxidation.”

✓ located verbatim in the source · abstract, characters 733–897 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cadmium contamination increased antioxidant enzymes activity.

Treatment
Cd contaminatione0
Outcome
antioxidant enzymes activitye0
Direction
increasee0

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

“The Cd contamination caused a significant increase in the accumulation of Cd in leaves and seeds, as well as in antioxidant enzymes activity and lipid peroxidation.”

✓ located verbatim in the source · abstract, characters 733–897 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cadmium contamination increased lipid peroxidation.

Treatment
Cd contaminatione0
Outcome
lipid peroxidatione0
Direction
increasee0

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

“The Cd contamination caused a significant increase in the accumulation of Cd in leaves and seeds, as well as in antioxidant enzymes activity and lipid peroxidation.”

✓ located verbatim in the source · abstract, characters 733–897 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cadmium contamination decreased seed weight.

Outcome
seed weighte0
Direction
decreasede0

Not reportedTreatmentComparator

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

“It also decreased seed weight and chlorophyll content in wheat plants.”

✓ located verbatim in the source · abstract, characters 898–968 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cadmium contamination decreased chlorophyll content.

Outcome
chlorophyll contente0
Direction
decreasede0

Not reportedTreatmentComparator

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

“It also decreased seed weight and chlorophyll content in wheat plants.”

✓ located verbatim in the source · abstract, characters 898–968 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent increased seed yield by 22.68 %.

Treatment
super absorbente0
Outcome
seed yielde0
Direction
increasede0
Value
22.68 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent increased seed weight by 19.31 %.

Treatment
super absorbente0
Outcome
seed weighte0
Direction
increasede0
Value
19.31 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent increased chlorophyll by 27.97 %.

Treatment
super absorbente0
Outcome
chlorophylle0
Direction
increasede0
Value
27.97 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent increased ascorbic acid content by 65.51 %.

Treatment
super absorbente0
Outcome
ascorbic acid contente0
Direction
increasede0
Value
65.51 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent reduced Cd accumulation in leaves by 34.27 %.

Treatment
super absorbente0
Outcome
Cd accumulation in leavese0
Direction
reducede0
Value
34.27 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent reduced seeds by 32.97 %.

Treatment
super absorbente0
Outcome
seedse0
Direction
reducede0
Value
32.97 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent reduced antioxidant enzymes activity by 43.77 %.

Treatment
super absorbente0
Outcome
antioxidant enzymes activitye0
Direction
reducede0
Value
43.77 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Super absorbent reduced lipid peroxidation by 43.77 %.

Treatment
super absorbente0
Outcome
lipid peroxidatione0
Direction
reducede0
Value
43.77 %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

“The super absorbent increased seed yield (22.68 %), seed weight (19.31 %), chlorophyll (27.97 %) and ascorbic acid content (65.51 %), while it reduced the Cd accumulation in leaves (34.27 %) and seeds (32.97 %), as well as antioxidant enzymes activity and lipid peroxidation (43.77 %).”

✓ located verbatim in the source · abstract, characters 969–1254 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascorbic acid increased seed yield by 12.62 %.

Treatment
Ascorbic acide0
Outcome
seed yielde0
Direction
increasede0
Value
12.62 %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

“Ascorbic acid increased seed yield, seed weight and chlorophyll content by 12.62 %, 17.66 % and 13.17 %, respectively.”

✓ located verbatim in the source · abstract, characters 1314–1432 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascorbic acid increased seed weight by 17.66 %.

Treatment
Ascorbic acide0
Outcome
seed weighte0
Direction
increasede0
Value
17.66 %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

“Ascorbic acid increased seed yield, seed weight and chlorophyll content by 12.62 %, 17.66 % and 13.17 %, respectively.”

✓ located verbatim in the source · abstract, characters 1314–1432 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascorbic acid increased chlorophyll content by 13.17 %.

Treatment
Ascorbic acide0
Outcome
chlorophyll contente0
Direction
increasede0
Value
13.17 %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

“Ascorbic acid increased seed yield, seed weight and chlorophyll content by 12.62 %, 17.66 % and 13.17 %, respectively.”

✓ located verbatim in the source · abstract, characters 1314–1432 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 103–108 · show in text ↑

cadmium atom · physiology: antioxidant enzymes · Triticum aestivum (wheat)Results differ

20 papers: 7 positive, 13 negative or no effect

12 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

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

26 papers: 5 positive, 21 negative or no effect

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

  1. positive
  2. positive
  3. positive

22 papers more in this group

See all 26 papers →

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

47 papers: 4 positive, 43 negative or no effect

42 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

43 papers more in this group

See all 47 papers →

cadmium atom · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results

40 papers: 10 positive, 30 negative or no effect

29 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

36 papers more in this group

See all 40 papers →

ascorbic acid · physiology: pigments · Triticum aestivum (wheat)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

ascorbic acid · yield · Triticum aestivum (wheat)Results agree

19 papers: 19 positive, 0 negative or no effect

18 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

heavy metal · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results

18 papers: 6 positive, 12 negative or no effect

11 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

14 papers more in this group

See all 18 papers →

heavy metal · yield · Triticum aestivum (wheat)Positive and negative results

20 papers: 3 positive, 17 negative or no effect

16 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

8 of 10 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.