Abstract
The aromatic and curative properties of sweet basil (Ocimum basilicum L.) are mainly related to the contents and chemical composition of essential oil. This substance may undergo quantitative and qualitative changes under the influence of various factors, among others, the agrotechnical and environmental ones. The subject of the foregoing studies was determining the effect of foliar nitrogen application (0.5% urea solution) upon the contents and chemical composition of the essential oil of the herb from the plants of four sweet basil cultivars grown in an unheated polyethylene (PE) foil tunnel. The application of urea was performed four times, in 10-day intervals, starting from the third decade in May. The volatile oil was extracted from the dried material by herb distillation with water vapor. The sample of oils were analyzed by using gas chromatography–flame ionization detector (GC–FID) and GC/mass spectrometry (GC/MS). No significant effect of foliar nitrogen application upon the quantity of oil accumulated by basil plants was revealed. The predominant component of the essential oil from the examined basil cultivars was linalool, whose share ranged from 60.6% to 75.9%, depending on the cultivar and the applied nitrogen fertilization procedure. Nitrogen application generally contributed to the decrease in the contents of main basil volatile oil components.
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Claims 3
Claim · model-written summary
Foliar nitrogen had no significant effect on oil quantity in basil.
- Taxon
- basil
Ocimum basilicume0 - Treatment
- foliar nitrogen applicatione0
- Outcome
- quantity of oil accumulatede0
- Direction
- No significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant effect of foliar nitrogen application upon the quantity of oil accumulated by basil plants was revealed.”
Claim · model-written summary
Linalool predominated in basil essential oil, with a 60.6% to 75.9% share depending on cultivar and nitrogen procedure.
- Taxon
- basilOcimum basilicume0
- Outcome
- linaloole0
- Value
- 60.6% to 75.9%e0
- Qualifier
- depending on the cultivar and the applied nitrogen fertilization proceduree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The predominant component of the essential oil from the examined basil cultivars was linalool, whose share ranged from 60.6% to 75.9%, depending on the cultivar and the applied nitrogen fertilization procedure.”
Claim · model-written summary
Nitrogen application generally decreased main basil volatile oil components.
- Taxon
- basilOcimum basilicume0
- Treatment
- Nitrogen applicatione0
- Outcome
- contents of main basil volatile oil componentse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen application generally contributed to the decrease in the contents of main basil volatile oil components.”
The same questions in other papers
nitrogen · molecular: metabolites · Ocimum basilicum (basil)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 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.