Paper · 2020 · Journal of Plant Nutrition

Protective effect of potassium application on NaCl induced stress in tomato (Lycopersicon esculentum L.) genotypes

Muhammad Jan; Muhammad Anwar ul Haq; Tanveer ul Haq; et al.

8
claims
16
verbatim quotes
11
citations
2
research areas
—
Not open access

Abstract

Salinity is a major limiting factor which disrupts the plant physiology as well as reduces the plant growth. Salinity stress can be minimized by potassium application as it regulates the plant growth. Protective effect of potassium application on NaCl induced stress in two tomato genotypes (Nasir and Skyland-II) at two levels of NaCl (0 and 7.5 dS m−1) combined with two levels of soil -applied K (0 and 4.50 mM) as well as with two levels of foliar-applied K (0 and 2% solution) was studied. Results showed that Skyland-II had significantly more dry biomass production, shoot K+ concentration under saline condition (7.5 dS m−1) and Nasir tomato genotype. Potassium contents were significantly higher when potassium was applied which reduced the adverse effect of salinity and thus enhanced the plant biomass. The increasing concentration of potassium in the Skyland-II genotype positively affected chlorophyll contents, stomatal conductance and K+/Na+ ratio. Salinity stress adversely reduced plant growth in both of the genotypes. It was concluded that potassium application improved plant growth especially in the Skyland-II genotype. Comparing the application methods, the soil applied potassium improved plant growth and decreased the adverse effect of salinity and could be used as an effective method for better production.

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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 8

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Under saline condition, Skyland-II tomato had significantly more dry biomass and shoot K+ concentration than the Nasir genotype.

Material
Skyland-IIe0
Treatment
saline condition (7.5 dS m−1)e0
Outcome
dry biomass production, shoot K+ concentratione0
Direction
moree0
Comparator
Nasir tomato genotypee0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Skyland-II had significantly more dry biomass production, shoot K+ concentration under saline condition (7.5 dS m−1) and Nasir tomato genotype”

✓ located verbatim in the source · abstract, characters 515–657 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Potassium contents in tomato were significantly higher when potassium was applied.

Treatment
potassium was appliede0
Outcome
Potassium contentse0
Direction
highere0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Potassium contents were significantly higher when potassium was applied”

✓ located verbatim in the source · abstract, characters 659–730 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium application reduced the adverse effect of salinity and enhanced tomato plant biomass.

Treatment
potassium was appliede0
Outcome
plant biomasse0
Direction
enhancede0
Qualifier
reduced the adverse effect of salinitye0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Potassium contents were significantly higher when potassium was applied which reduced the adverse effect of salinity and thus enhanced the plant biomass”

✓ located verbatim in the source · abstract, characters 659–811 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing potassium concentration in Skyland-II positively affected chlorophyll contents, stomatal conductance and K+/Na+ ratio.

Material
Skyland-IIe0
Treatment
increasing concentration of potassiume0
Outcome
chlorophyll contents, stomatal conductance and K+/Na+ ratioe0
Direction
positively affectede0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The increasing concentration of potassium in the Skyland-II genotype positively affected chlorophyll contents, stomatal conductance and K+/Na+ ratio”

✓ located verbatim in the source · abstract, characters 813–961 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity stress adversely reduced plant growth in both tomato genotypes.

Material
both of the genotypese0
Treatment
Salinity stresse0
Outcome
plant growthe0
Direction
reducede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Salinity stress adversely reduced plant growth in both of the genotypes”

✓ located verbatim in the source · abstract, characters 963–1034 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium application improved plant growth especially in the Skyland-II genotype.

Material
Skyland-II genotypee0
Treatment
potassium applicatione0
Outcome
plant growthe0
Direction
improvede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“potassium application improved plant growth especially in the Skyland-II genotype”

✓ located verbatim in the source · abstract, characters 1058–1139 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil-applied potassium, compared with the foliar method, improved plant growth and decreased the adverse effect of salinity.

Treatment
the soil applied potassiume0
Outcome
plant growthe0
Direction
improvede0
Qualifier
decreased the adverse effect of salinitye0
Comparator
the application methodse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Comparing the application methods, the soil applied potassium improved plant growth and decreased the adverse effect of salinity”

✓ located verbatim in the source · abstract, characters 1141–1269 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend soil-applied potassium as an effective method for better tomato production under salinity.

Outcome
effective method for better productione0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“could be used as an effective method for better production”

✓ located verbatim in the source · abstract, characters 1274–1332 · show in text ↑
t0

“tomato (Lycopersicon esculentum L.)”

✓ located verbatim in the source · title, characters 69–104 · show in text ↑

potassium · growth · Solanum lycopersicum (tomato)Results differ

47 papers: 34 positive, 13 negative or no effect

33 papers in the same direction as this paper · 13 in the opposite direction

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

43 papers more in this group

See all 47 papers →

potassium · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results

41 papers: 27 positive, 14 negative or no effect

26 papers in the same direction as this paper · 14 in the opposite direction

  1. no effect
  2. negative
  3. no effect

37 papers more in this group

See all 41 papers →

salinity · growth · Solanum lycopersicum (tomato)Positive and negative results

300 papers: 39 positive, 261 negative or no effect

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

  1. negative
  2. negative
  3. positive

296 papers more in this group

See all 300 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.