Abstract
Background: Basil (Ocimum basilicum L.) is a valuable medicinal and aromatic plant which is cultivated throughout the world. Therefore, it is necessary to determine effect of important agronomical factors on quality and quantity of its volatile oil. Objective: To determine plant density and nitrogen fertilization effects on quality and quantity yield of basil. Method: This study was done in Research farm of ACECR, Institute of Medicinal Plants & Natural Products Research in 2006 on the base of factorial experiment in randomized complete block design with four replications. All possible combinations of three plant densities (266666, 200000 and 160000 plants ha-1) and three nitrogen rates (0, 50 or 100 kg ha-1) were established. Results: The results indicated that plant density had significant effect (p < 0.01) on yield of dry herbage and oil. Plant density had no significant effect on oil content but due to the increment in dry herbage yield per unit area, oil yield had been significantly increased in higher plant density. Nitrogen fertilization had significant effect (p < 0.01) on all studied parameters. Although, nitrogen application had adverse effect on oil content, nitrogen fertilization up to 100 kg ha-1 increased yield of dry herbage and essential oil. Such increase in essential oil yield was caused by N fertilization due to an increase in dry herbage yield. Conclusion: The maximum yield of dry herbage and oil were obtained in plant density of 266666 plants ha-1 with nitrogen application of 100kgha-1 and was the best treatment in respect of dry matter and oil yield.
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Claims 8
Claim · model-written summary
Higher plant density increased basil dry herbage yield.
- Taxon
- Basil
Ocimum basilicumt0 - Treatment
- higher plant densitye0
- Outcome
- dry herbage yield per unit areae0
- Direction
- incremente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“due to the increment in dry herbage yield per unit area, oil yield had been significantly increased in higher plant density”
t0“Basil”
Claim · model-written summary
Higher plant density significantly increased basil oil yield.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- higher plant densitye0
- Outcome
- oil yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil yield had been significantly increased in higher plant density”
t0“Basil”
Claim · model-written summary
Plant density did not significantly affect basil oil content.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- Plant densitye0
- Outcome
- oil contente0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant density had no significant effect on oil content”
t0“Basil”
Claim · model-written summary
Nitrogen application reduced basil oil content.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- nitrogen applicatione0
- Outcome
- oil contente0
- Direction
- adverse effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen application had adverse effect on oil content”
t0“Basil”
Claim · model-written summary
Nitrogen fertilization up to 100 kg ha-1 increased basil dry herbage yield.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- nitrogen fertilization up to 100 kg ha-1e0
- Outcome
- yield of dry herbagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen fertilization up to 100 kg ha-1 increased yield of dry herbage and essential oil”
t0“Basil”
Claim · model-written summary
Nitrogen fertilization up to 100 kg ha-1 increased basil essential oil yield.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- nitrogen fertilization up to 100 kg ha-1e0
- Outcome
- essential oile0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen fertilization up to 100 kg ha-1 increased yield of dry herbage and essential oil”
t0“Basil”
Claim · model-written summary
The highest basil dry herbage yield occurred at 266666 plants ha-1 and 100kgha-1 nitrogen.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- plant density of 266666 plants ha-1 with nitrogen application of 100kgha-1e0
- Outcome
- maximum yield of dry herbagee0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum yield of dry herbage and oil were obtained in plant density of 266666 plants ha-1 with nitrogen application of 100kgha-1”
t0“Basil”
Claim · model-written summary
The highest basil oil yield occurred at 266666 plants ha-1 and 100kgha-1 nitrogen.
- Taxon
- BasilOcimum basilicumt0
- Treatment
- plant density of 266666 plants ha-1 with nitrogen application of 100kgha-1e0
- Outcome
- oile0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum yield of dry herbage and oil were obtained in plant density of 266666 plants ha-1 with nitrogen application of 100kgha-1”
t0“Basil”
The same questions in other papers
nitrogen · quality: oil · Ocimum basilicum (basil)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
fertilization · yield · Ocimum basilicum (basil)Results differ
47 papers in the same direction as this paper · 4 in the opposite direction
- negative
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See all 52 papers →density · quality: oil · Ocimum basilicum (basil)Positive and negative results
2 in the opposite direction
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density · yield · Ocimum basilicum (basil)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
6 papers more in this group
See all 10 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.