Paper · 2025 · Tarım Bilimleri Dergisi

Nitrogen Fertilization Effects on Oil Content, Sucrose, α- Tocopherol, Fatty Acid and Aminoacid Compositions of Confectionary Sunflower Seed

Öner Canavar; Hatice Kübra Gören

9
claims
18
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

This study investigates the effects of nitrogen fertilization on the composition of confectionary sunflower seeds, including parameters such as oil content, alpha-tocopherol, sucrose, amino acids and fatty acid composition. Nitrogen fertilization, surprisingly, had no significant effect on sunflower oil content, with remarkable differences observed between the genotypes. The α-tocopherol content, an important antioxidant, displayed responses that were dependent on the genotype upon application of nitrogen. The Somon Beyazı genotype consistently demonstrated higher oil content compared to the Ahmet Bey genotype. In addition, both genotypes showed a decrease in α-tocopherol levels as the application of nitrogen increased. Sucrose content was higher in the Somon Beyazı genotype and decreased significantly with increasing nitrogen doses. Significant variations were observed in fatty acid compositions, further emphasizing the impact of genotype and nitrogen application. The study also revealed diverse amino acid profiles, with notable concentrations of glutamine and asparagine. This comprehensive study highlights the complex interaction between genotype and nitrogen fertilization and provides valuable insights for optimising sunflower seed production and quality. The results emphasise the significance of integrating both genetic factors and nutrient management practices into crop cultivation for improved agricultural outcomes.

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 9

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen fertilization has no significant effect on sunflower seed oil content.

Taxon
sunflowerHelianthus annuust0
Treatment
Nitrogen fertilizatione1
Outcome
oil contente1
Direction
no significant effecte1

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e1

“Nitrogen fertilization, surprisingly, had no significant effect on sunflower oil content”

✓ located verbatim in the source · abstract, characters 224–312 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The Somon Beyazı sunflower genotype has higher seed oil content than the Ahmet Bey genotype.

Taxon
sunflowerHelianthus annuust0
Material
Somon Beyazı genotypee2
Outcome
oil contente2
Direction
highere2
Comparator
Ahmet Bey genotypee2

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e2

“The Somon Beyazı genotype consistently demonstrated higher oil content compared to the Ahmet Bey genotype”

✓ located verbatim in the source · abstract, characters 512–617 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Alpha-tocopherol content of sunflower seed depends on genotype in response to nitrogen application.

Taxon
sunflowerHelianthus annuust0
Treatment
application of nitrogene3
Outcome
α-tocopherol contente3
Qualifier
dependent on the genotypee3

Not reportedDirection

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e3

“The α-tocopherol content, an important antioxidant, displayed responses that were dependent on the genotype upon application of nitrogen”

✓ located verbatim in the source · abstract, characters 374–510 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Alpha-tocopherol levels in sunflower seed decrease as nitrogen application increases.

Taxon
sunflowerHelianthus annuust0
Treatment
application of nitrogene4
Outcome
α-tocopherol levelse4
Direction
decreasee4

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e4

“both genotypes showed a decrease in α-tocopherol levels as the application of nitrogen increased”

✓ located verbatim in the source · abstract, characters 632–728 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Sucrose content is higher in the Somon Beyazı sunflower genotype.

Taxon
sunflowerHelianthus annuust0
Material
Somon Beyazı genotypee5
Outcome
Sucrose contente5
Direction
highere5

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e5

“Sucrose content was higher in the Somon Beyazı genotype and decreased significantly with increasing nitrogen doses”

✓ located verbatim in the source · abstract, characters 730–844 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sucrose content in sunflower seed decreases significantly with increasing nitrogen doses.

Taxon
sunflowerHelianthus annuust0
Treatment
increasing nitrogen dosese5
Outcome
Sucrose contente5
Direction
decreasede5

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e5

“Sucrose content was higher in the Somon Beyazı genotype and decreased significantly with increasing nitrogen doses”

✓ located verbatim in the source · abstract, characters 730–844 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Fatty acid composition of sunflower seed varies significantly with genotype and nitrogen application.

Taxon
sunflowerHelianthus annuust0
Material
genotypee6
Treatment
nitrogen applicatione6
Outcome
fatty acid compositionse6

Not reportedDirection

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e6

“Significant variations were observed in fatty acid compositions, further emphasizing the impact of genotype and nitrogen application”

✓ located verbatim in the source · abstract, characters 846–978 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Sunflower seed shows notable concentrations of glutamine and asparagine.

Taxon
sunflowerHelianthus annuust0
Outcome
concentrations of glutamine and asparaginee7

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e7

“The study also revealed diverse amino acid profiles, with notable concentrations of glutamine and asparagine”

✓ located verbatim in the source · abstract, characters 980–1088 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Integrating genetic factors and nutrient management into sunflower cultivation is recommended for better outcomes.

Taxon
sunflowerHelianthus annuust0
Outcome
integrating both genetic factors and nutrient management practices into crop cultivatione7

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

“Confectionary Sunflower Seed”

✓ located verbatim in the source · title, characters 112–140 · show in text ↑
e7

“The results emphasise the significance of integrating both genetic factors and nutrient management practices into crop cultivation for improved agricultural outcomes”

✓ located verbatim in the source · abstract, characters 1279–1444 · show in text ↑

fertilization · quality: oil · Helianthus annuus (common sunflower)Results differ

89 papers: 76 positive, 13 negative or no effect

12 papers in the same direction as this paper · 76 in the opposite direction

  1. positive
  2. positive
  3. positive

85 papers more in this group

See all 89 papers →

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

9 papers: 6 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 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.