Paper · 2018 · Pure and Applied Biology

Effect of potassium and sulfur on grain yield, oil concentration and fatty acid profile of sunflower

Saif Ullah

15
claims
42
verbatim quotes
6
citations
2
research areas
✓
Open access · cc-by

Abstract

Sunflower is an important edible oil seed crop. Adequate amount of nutrients are required for sunflower to get maximum yield. A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016 with the objective to investigate the effect of potassium levels (30, 60, 90 and 120 kg ha -1 ) and sulfur levels (15, 30, 45 and 60 kg ha -1 ) on oil and grain yield of sunflower. The experiment was conducted in randomized complete block (RCB) design with three replications. One control plot with no potassium and sulfur was maintained in each replication. Ammonium sulfate and Potassium chloride were applied as a source for sulfur and potassium, respectively. The results showed that palmitic acid concentration and stearic acid concentration were not affected by potassium and sulfur application. Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %). Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %). Non-significant effect of sulfur was observed on biological yield of sunflower. Application of potassium at the rate of 90 kg ha -1 and sulfur at the rate of 60 kg ha -1 could be recommended for higher oil and grain yield of sunflower.

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 15

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 90 kg ha -1 produced the maximum biological yield (7178 kgha -1) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Potassium applied at the rate of 90 kg ha -1e2
Outcome
biological yielde2
Direction
maximume2
Value
7178 kgha -1e2
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e2

“Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %)”

✓ located verbatim in the source · abstract, characters 842–1047 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 90 kg ha -1 produced the maximum grain yield (2074 kg ha -1) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Potassium applied at the rate of 90 kg ha -1e2
Outcome
grain yielde2
Direction
maximume2
Value
2074 kg ha -1e2
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e2

“Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %)”

✓ located verbatim in the source · abstract, characters 842–1047 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 90 kg ha -1 produced the maximum oil yield (775 kg ha -1) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Potassium applied at the rate of 90 kg ha -1e2
Outcome
oil yielde2
Direction
maximume2
Value
775 kg ha -1e2
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e2

“Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %)”

✓ located verbatim in the source · abstract, characters 842–1047 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 90 kg ha -1 produced the maximum harvest index (28.87 %) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Potassium applied at the rate of 90 kg ha -1e2
Outcome
harvest indexe2
Direction
maximume2
Value
28.87 %e2
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e2

“Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %)”

✓ located verbatim in the source · abstract, characters 842–1047 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 90 kg ha -1 produced the maximum oil percentage (37.32 %) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Potassium applied at the rate of 90 kg ha -1e2
Outcome
oil percentagee2
Direction
maximume2
Value
37.32 %e2
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e2

“Potassium applied at the rate of 90 kg ha -1 produced maximum biological yield (7178 kgha -1 ), grain yield (2074 kg ha -1 ), oil yield (775 kg ha -1 ), harvest index (28.87 %) and oil percentage (37.32 %)”

✓ located verbatim in the source · abstract, characters 842–1047 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum number of grains per capitulum (873) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
grains capitulum -1e3
Direction
maximume3
Value
873e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum thousand grain weight (46.63 g) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
thousand grain weighte3
Direction
maximume3
Value
46.63 ge3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum grain yield (2037 kg ha -1) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
grain yielde3
Direction
maximume3
Value
2037 kg ha -1e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum oil yield (771 kg ha -1) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
oil yielde3
Direction
maximume3
Value
771 kg ha -1e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum harvest index (29.54 %) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
harvest indexe3
Direction
maximume3
Value
29.54 %e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum oil percentage (37.81 %) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
oil percentagee3
Direction
maximume3
Value
37.81 %e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur at 60 kg ha -1 produced the maximum linoleic acid concentration (78.80 %) of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Sulfur applied at the rate of 60 kg ha -1e3
Outcome
linoleic acid concentratione3
Direction
maximume3
Value
78.80 %e3
Setting
Agronomy Research Farm, The University of Agriculture, Peshaware0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e0

“A field trial was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during Summer 2016”

✓ located verbatim in the source · abstract, characters 126–239 · show in text ↑
e3

“Sulfur applied at the rate of 60 kg ha -1 produced maximum grains capitulum -1 (873), thousand grain weight (46.63 g), grain yield (2037 kg ha -1 ), oil yield (771 kg ha -1 ), harvest index (29.54 %), oil percentage (37.81 %) and linoleic acid concentration (78.80 %)”

✓ located verbatim in the source · abstract, characters 1049–1316 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Potassium and sulfur application did not affect palmitic and stearic acid concentrations of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
potassium and sulfur applicatione1
Outcome
palmitic acid concentration and stearic acid concentratione1
Direction
not affectede1

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e1

“The results showed that palmitic acid concentration and stearic acid concentration were not affected by potassium and sulfur application”

✓ located verbatim in the source · abstract, characters 704–840 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sulfur had no significant effect on the biological yield of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
sulfure4
Outcome
biological yielde4
Direction
Non-significant effecte4

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e4

“Non-significant effect of sulfur was observed on biological yield of sunflower”

✓ located verbatim in the source · abstract, characters 1318–1396 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Potassium at 90 kg ha -1 with sulfur at 60 kg ha -1 is recommended for higher oil and grain yield of sunflower.

Taxon
sunflowerHelianthus annuust0
Treatment
Application of potassium at the rate of 90 kg ha -1 and sulfur at the rate of 60 kg ha -1e5
Outcome
higher oil and grain yielde5

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

t0

“fatty acid profile of sunflower”

✓ located verbatim in the source · title, characters 69–100 · show in text ↑
e5

“Application of potassium at the rate of 90 kg ha -1 and sulfur at the rate of 60 kg ha -1 could be recommended for higher oil and grain yield of sunflower”

✓ located verbatim in the source · abstract, characters 1398–1552 · show in text ↑

sulfur atom · yield · Helianthus annuus (common sunflower)Results differ

45 papers: 43 positive, 2 negative or no effect

42 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive

41 papers more in this group

See all 45 papers →

sulfur atom · molecular: metabolites · Helianthus annuus (common sunflower)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

3 in the opposite direction

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

sulfur atom · quality: oil · Helianthus annuus (common sunflower)Positive and negative results

20 papers: 19 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

potassium · molecular: metabolites · Helianthus annuus (common sunflower)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

4 in the opposite direction

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

potassium · yield · Helianthus annuus (common sunflower)Positive and negative results

51 papers: 48 positive, 3 negative or no effect

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

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

47 papers more in this group

See all 51 papers →

potassium · quality: oil · Helianthus annuus (common sunflower)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 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.