Paper · 2020 · Physiologia Plantarum

Supplementation of potassium alleviates water stress‐induced changes in Sorghum bicolor L.

Megha Tittal; Rayees Ahmad Mir; Keshav Singh Jatav; et al.

8
claims
20
verbatim quotes
32
citations
2
research areas
—
Not open access

Abstract

This report discusses water stress-induced changes and their amelioration by added potassium in Sorghum bicolor L. Chlorophylls, carotenoids, and the activity of nitrogen metabolizing enzymes viz., nitrate reductase, alanine aminotransferase and aspartate aminotransferase were adversely affected under water stress and restricted irrigation. Osmotic as well as water stress trigger ROS production while potassium ameliorated these changes to some extent and increased the activity of SOD, CAT, APX, and GR and the contents of GSH and AsA. Water stress-induced changes ultimately reflecting on growth and yield parameters like plant height, biomass yield, grain yield, days to flowering, and days to maturity. Added potassium affected these parameters positively, both under normal and stress conditions, indicating the use of potassium as a tool for mitigating the water stress induced deleterious changes in sorghum to some extent by enhancing the nitrogen use efficiency and strengthening the enzymatic and non-enzymatic antioxidant components. The results obtained here exhibited similar trends in seedlings and plants raised in sand cultures and field conditions, making them more meaningful and comprehensible.

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Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress and restricted irrigation adversely affected chlorophylls, carotenoids and nitrogen-metabolising enzyme activity in sorghum.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
water stress and restricted irrigatione1
Outcome
Chlorophylls, carotenoids, and the activity of nitrogen metabolizing enzymese1
Direction
adversely affectede1

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e1

“Chlorophylls, carotenoids, and the activity of nitrogen metabolizing enzymes viz., nitrate reductase, alanine aminotransferase and aspartate aminotransferase were adversely affected under water stress and restricted irrigation”

✓ located verbatim in the source · abstract, characters 115–341 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress increased ROS production in sorghum.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
water stresse2
Outcome
ROS productione2
Direction
increaseinferrede2

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e2

“Osmotic as well as water stress trigger ROS production”

✓ located verbatim in the source · abstract, characters 343–397 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium ameliorated the water-stress-induced ROS production to some extent.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
potassiume3
Outcome
ROS productione2
Direction
amelioratede3
Qualifier
to some extente3
Comparator
water stresse2

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e2

“Osmotic as well as water stress trigger ROS production”

✓ located verbatim in the source · abstract, characters 343–397 · show in text ↑
e3

“potassium ameliorated these changes to some extent”

✓ located verbatim in the source · abstract, characters 404–454 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium increased the activity of SOD, CAT, APX and GR in sorghum.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
potassiume3
Outcome
the activity of SOD, CAT, APX, and GRe4
Direction
increasede4

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e3

“potassium ameliorated these changes to some extent”

✓ located verbatim in the source · abstract, characters 404–454 · show in text ↑
e4

“increased the activity of SOD, CAT, APX, and GR and the contents of GSH and AsA”

✓ located verbatim in the source · abstract, characters 459–538 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium increased the contents of GSH and AsA in sorghum.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
potassiume3
Outcome
the contents of GSH and AsAe4
Direction
increasede4

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e3

“potassium ameliorated these changes to some extent”

✓ located verbatim in the source · abstract, characters 404–454 · show in text ↑
e4

“increased the activity of SOD, CAT, APX, and GR and the contents of GSH and AsA”

✓ located verbatim in the source · abstract, characters 459–538 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Added potassium affected growth and yield parameters positively under both normal and stress conditions.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Treatment
potassiume5
Outcome
growth and yield parameterse6
Direction
positivelye5

Not reportedComparator

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e5

“Added potassium affected these parameters positively, both under normal and stress conditions”

✓ located verbatim in the source · abstract, characters 710–803 · show in text ↑
e6

“reflecting on growth and yield parameters like plant height”

✓ located verbatim in the source · abstract, characters 580–639 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Potassium mitigates water-stress-induced changes in sorghum, possibly by enhancing nitrogen use efficiency.

Taxon
sorghumSorghume7
Outcome
water stress induced deleterious changese7
Qualifier
by enhancing the nitrogen use efficiencye7

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e7

“as a tool for mitigating the water stress induced deleterious changes in sorghum to some extent by enhancing the nitrogen use efficiency”

✓ located verbatim in the source · abstract, characters 837–973 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Potassium effects showed similar trends in seedlings and plants grown in sand culture and in the field.

Taxon
Sorghum bicolor L.Sorghum bicolort0
Material
seedlings and plantse7
Outcome
similar trendse7
Setting
sand cultures and field conditionse7

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

Sorghum bicolor
Sorghum bicolor · TaxonNo machine-readable author provided. Pethan assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Sorghum bicolor L.”

✓ located verbatim in the source · title, characters 72–90 · show in text ↑
e7

“The results obtained here exhibited similar trends in seedlings and plants raised in sand cultures and field conditions”

✓ located verbatim in the source · abstract, characters 1048–1167 · show in text ↑

irrigation · physiology: pigments · Sorghum bicolor (sorghum)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

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

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

drought · physiology: oxidative · Sorghum bicolor (sorghum)Positive and negative results

6 papers: 1 positive, 5 negative or no effect

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

  1. positive
  2. negative
  3. negative

2 papers more in this group

See all 6 papers →

potassium · yield · Sorghum bicolor (sorghum)Positive and negative results

12 papers: 7 positive, 5 negative or no effect

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

  1. no effect
  2. no effect
  3. no effect

8 papers more in this group

See all 12 papers →

potassium · physiology: antioxidant enzymes · Sorghum bicolor (sorghum)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

drought · physiology: pigments · Sorghum bicolor (sorghum)Results agree

7 papers: 0 positive, 7 negative or no effect

6 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

3 papers more in this group

See all 7 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.