Paper · 2016 · DOAJ (DOAJ: Directory of Open Access Journals)

Influence of hydrogel polymer and NO3-: NH4+ ratios on dill (Anethum graveolens L.) seed essential oil composition and yield

H. Shekofteh; Nava Salari

9
claims
19
verbatim quotes
4
citations
2
research areas
✓
Open access · cc-by

Abstract

To evaluate the effects of hydrogel polymer levels (0, 10, 20, 30 g m-2) and NO3:NH4 ratios (0: 100, 25: 75, 50: 50, 75: 25, and 100: 0) on dill seed yield and its essential oil constituents, an experiment was conducted in October 2012 in the experimental field of Islamic Azad University, Jiroft, Iran. Results showed that using 30 g m-2 hydrogel polymer with 75NO3-: 25 NH4+ ratio produced maximum seed yield and the same plus 100NO3-:0NH4+ led to a max essential oil yield. GC-MS analysis indicated that major constituents of dill seed oil were carvone, limonene, dillapiole, α-phellandrene, and trans-dihydrocarvone. The interactive effects of concurrent use of hydrogel polymer and NO3-:NH4+ ratios on the constituents were evaluated: non-use of super-absorbent polymer reduced components like α-terpinene, limonene, dillapiol, and trans-carvone, whereas its addition to such compounds as α-phellandrene, p-cymene, carvone, and trans-dihydrocarvone left a negative effect. In most cases, application of nitrate above 50℅ and reducing ammonium positively increased the compounds.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A hydrogel polymer at 30 g m-2 with a 75:25 NO3:NH4 ratio gave the maximum seed yield of dill.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
30 g m-2 hydrogel polymer with 75NO3-: 25 NH4+ ratioe1
Outcome
seed yielde1
Direction
maximume1
Setting
experimental field of Islamic Azad University, Jiroft, Irane0

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e0

“an experiment was conducted in October 2012 in the experimental field of Islamic Azad University, Jiroft, Iran”

✓ located verbatim in the source · abstract, characters 192–302 · show in text ↑
e1

“using 30 g m-2 hydrogel polymer with 75NO3-: 25 NH4+ ratio produced maximum seed yield”

✓ located verbatim in the source · abstract, characters 324–410 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding 100NO3:0NH4 to the 30 g m-2 hydrogel polymer treatment gave the maximum essential oil yield of dill seed.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
100NO3-:0NH4+e2
Outcome
essential oil yielde2
Direction
maxe2

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e2

“the same plus 100NO3-:0NH4+ led to a max essential oil yield”

✓ located verbatim in the source · abstract, characters 415–475 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Carvone, limonene and dillapiole were major constituents of dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Outcome
carvone, limonene, dillapiolee3
Qualifier
major constituents of dill seed oile3

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e3

“GC-MS analysis indicated that major constituents of dill seed oil were carvone, limonene, dillapiole, α-phellandrene, and trans-dihydrocarvone”

✓ located verbatim in the source · abstract, characters 477–619 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Alpha-phellandrene and trans-dihydrocarvone were major constituents of dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Outcome
α-phellandrene, and trans-dihydrocarvonee3
Qualifier
major constituents of dill seed oile3

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e3

“GC-MS analysis indicated that major constituents of dill seed oil were carvone, limonene, dillapiole, α-phellandrene, and trans-dihydrocarvone”

✓ located verbatim in the source · abstract, characters 477–619 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Non-use of super-absorbent polymer reduced alpha-terpinene, limonene and dillapiol in dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
non-use of super-absorbent polymere4
Outcome
α-terpinene, limonene, dillapiole4
Direction
reducede4

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e4

“non-use of super-absorbent polymer reduced components like α-terpinene, limonene, dillapiol, and trans-carvone”

✓ located verbatim in the source · abstract, characters 740–850 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Non-use of super-absorbent polymer reduced trans-carvone in dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
non-use of super-absorbent polymere4
Outcome
trans-carvonee4
Direction
reducede4

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e4

“non-use of super-absorbent polymer reduced components like α-terpinene, limonene, dillapiol, and trans-carvone”

✓ located verbatim in the source · abstract, characters 740–850 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Adding super-absorbent polymer left a negative effect on alpha-phellandrene, p-cymene and carvone in dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
its additione5
Outcome
α-phellandrene, p-cymene, carvonee5
Direction
negative effecte5

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e5

“its addition to such compounds as α-phellandrene, p-cymene, carvone, and trans-dihydrocarvone left a negative effect”

✓ located verbatim in the source · abstract, characters 860–976 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Adding super-absorbent polymer left a negative effect on trans-dihydrocarvone in dill seed oil.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
its additione5
Outcome
trans-dihydrocarvonee5
Direction
negative effecte5

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e5

“its addition to such compounds as α-phellandrene, p-cymene, carvone, and trans-dihydrocarvone left a negative effect”

✓ located verbatim in the source · abstract, characters 860–976 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrate above 50% and reduced ammonium positively increased dill seed oil compounds in most cases.

Taxon
Anethum graveolensAnethum graveolenst0
Treatment
application of nitrate above 50℅ and reducing ammoniume6
Outcome
the compoundse6
Direction
increasede6
Qualifier
In most casese6

Not reportedComparator

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

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“dill (Anethum graveolens L.) seed essential oil composition and yield”

✓ located verbatim in the source · title, characters 55–124 · show in text ↑
e6

“In most cases, application of nitrate above 50℅ and reducing ammonium positively increased the compounds”

✓ located verbatim in the source · abstract, characters 978–1082 · show in text ↑

other · yield · Anethum graveolens (dill)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.