Abstract
To evaluate the effects of bio-fertilizers included; nitrogen fixing bacteria (N-b), phosphate solubilizing bacteria (Pb), sulfur oxidizing bacteria (Sb), N-b+Pb, Nb+Sb, Pb+Sb, N-b+Pb+Sb, chemical fertilizer (chemical origin of nitrogen+ phosphorus+ potassium=NPK) and control (no fertilizer treatment) on the components of essential oil of Dracocephalum moldavica, an experiment was conducted based on randomized complete block design with four replications. Results showed the significant effect of bio-fertilizers on biomass and essential oil percentage and yield. The highest biomass and essential oil yield were obtained by NPK application, followed by biological nitrogen. The highest essential oil percentage was recorded for plants treated with N-b+Pb+Sb treatment, which was statistically similar with plants inoculated by N-b, and Pb+Sb. About 60 components were identified in the essential oil; the major compounds were geranyl acetate, geranial, geraniol, neral, nerol. Geranial was the prominent component found in considerable quantity in all treatments except NPK, in which it was absent.
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Claims 6
Claim · model-written summary
Bio-fertilizers had a significant effect on biomass, essential oil percentage and essential oil yield compared with the no-fertilizer control.
- Taxon
- Dracocephalum moldavica
Dracocephalum moldavicae2 - Treatment
- bio-fertilizerse0
- Outcome
- biomass and essential oil percentage and yielde0
- Comparator
- control (no fertilizer treatment)e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results showed the significant effect of bio-fertilizers on biomass and essential oil percentage and yield”
e1“chemical fertilizer (chemical origin of nitrogen+ phosphorus+ potassium=NPK) and control (no fertilizer treatment)”
e2“essential oil of Dracocephalum moldavica”
Claim · model-written summary
NPK application gave the highest biomass and essential oil yield, followed by biological nitrogen.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicae1
- Treatment
- NPK applicatione0
- Outcome
- biomass and essential oil yielde0
- Direction
- higheste0
- Comparator
- biological nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest biomass and essential oil yield were obtained by NPK application, followed by biological nitrogen”
e1“essential oil of Dracocephalum moldavica”
Claim · model-written summary
The N-b+Pb+Sb treatment gave the highest essential oil percentage, statistically similar to plants inoculated with N-b and Pb+Sb.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicae2
- Treatment
- N-b+Pb+Sb treatmente0
- Interactor
- nitrogen fixing bacteriae1symbiont
- Second interactor
- phosphate solubilizing bacteriae1symbiont
- Outcome
- essential oil percentagee0
- Direction
- higheste0
- Qualifier
- statistically similar with plants inoculated by N-b, and Pb+Sbe0
- Comparator
- plants inoculated by N-be0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest essential oil percentage was recorded for plants treated with N-b+Pb+Sb treatment, which was statistically similar with plants inoculated by N-b, and Pb+Sb”
e1“nitrogen fixing bacteria (N-b), phosphate solubilizing bacteria (Pb)”
e2“essential oil of Dracocephalum moldavica”
Claim · model-written summary
About 60 components were identified in the essential oil.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicae1
- Outcome
- components were identified in the essential oile0
- Value
- 60e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“About 60 components were identified in the essential oil; the major compounds were geranyl acetate, geranial, geraniol, neral, nerol”
e1“essential oil of Dracocephalum moldavica”
Claim · model-written summary
Geranyl acetate, geranial, geraniol, neral and nerol were the major essential oil compounds.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicae1
- Outcome
- major compoundse0
- Qualifier
- geranyl acetate, geranial, geraniol, neral, nerole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“About 60 components were identified in the essential oil; the major compounds were geranyl acetate, geranial, geraniol, neral, nerol”
e1“essential oil of Dracocephalum moldavica”
Claim · model-written summary
Geranial was a prominent essential oil component in all treatments except NPK, where it was absent.
- Taxon
- Dracocephalum moldavicaDracocephalum moldavicae1
- Outcome
- prominent componente0
- Qualifier
- in all treatments except NPK, in which it was absente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Geranial was the prominent component found in considerable quantity in all treatments except NPK, in which it was absent”
e1“essential oil of Dracocephalum moldavica”
The same questions in other papers
inoculation · quality: oil · Dracocephalum moldavicaResults agree
2 papers in the same direction as this paper
- positive
- positive
fertilization · quality: oil · Dracocephalum moldavicaResults agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.