Abstract
Nitrogen is an important nutrient known for enhancing biomass and grain yield. Nevertheless, the effect of varying nitrogen treatment rates on the tocopherol levels in onion seeds remains poorly understood. The purpose of this study was to ascertain how the different rates of nitrogen fertilization affected the seed yield, seed quality , oil content, and tocopherol content in onion seed. A field experiment was carried out for two years, i.e., 2020–21 and 2021–22. The onion seeds crop was fertilized with different nitrogen levels, i.e., 0 kg/ha, 50 kg/ha, 100 kg/ha, and 150 kg/ha. Nitrogen application had a significant effect on seed oil content and quality parameters like α, β, γ, δ and total tocopherol content. Further nitrogen applied at 100 kg/ha had a favourable effect on the seed yield and seed quality parameters. These results demonstrate that nitrogen fertilization improves both the quantity and seed oil and quality of onion seeds, highlighting its significance in enhancing onion seed yield and quality.
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Claims 5
Claim · model-written summary
Nitrogen application significantly affected onion seed oil content.
- Taxon
- onion
Allium cepat0 - Treatment
- Nitrogen applicatione0
- Outcome
- seed oil contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen application had a significant effect on seed oil content and quality parameters like α, β, γ, δ and total tocopherol content.”
t0“onion”
Claim · model-written summary
Nitrogen application significantly affected onion seed α, β and γ tocopherol content.
- Taxon
- onion
Allium cepat0 - Treatment
- Nitrogen applicatione0
- Outcome
- α, β, γe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen application had a significant effect on seed oil content and quality parameters like α, β, γ, δ and total tocopherol content.”
t0“onion”
Claim · model-written summary
Nitrogen application significantly affected onion seed δ and total tocopherol content.
- Taxon
- onion
Allium cepat0 - Treatment
- Nitrogen applicatione0
- Outcome
- δ and total tocopherol contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Nitrogen application had a significant effect on seed oil content and quality parameters like α, β, γ, δ and total tocopherol content.”
t0“onion”
Claim · model-written summary
Nitrogen at 100 kg/ha favorably affected onion seed yield.
- Taxon
- onion
Allium cepat0 - Treatment
- nitrogen applied at 100 kg/hae0
- Outcome
- seed yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“nitrogen applied at 100 kg/ha had a favourable effect on the seed yield and seed quality parameters.”
t0“onion”
Claim · model-written summary
Nitrogen at 100 kg/ha favorably affected onion seed quality.
- Taxon
- onion
Allium cepat0 - Treatment
- nitrogen applied at 100 kg/hae0
- Outcome
- seed quality parameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“nitrogen applied at 100 kg/ha had a favourable effect on the seed yield and seed quality parameters.”
t0“onion”
The same questions in other papers
nitrogen · yield · Allium cepa (onion)Positive and negative results
156 papers in the same direction as this paper · 23 in the opposite direction · 4 reporting no difference from an alternative
- negative
- negative
- negative
180 papers more in this group
See all 184 papers →nitrogen · quality: grain · Allium cepa (onion)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.