Abstract
Origanum vulgare L. better known as oregano or marjoram in Europe and Brazil is a herbaceous plant which determines long-range chemical and morphological diversity. The composition of essential oil of herbs like oregano, depends on different factors such as climate, geographical origin, harvest season, nutrition that can significantly affect the oil production and quality. The objective of this work was investigate the oregano oil production and composition in differents conditions of crops and seasons in Cerrado of Brazil. The experimental was a randomized block design (RBD) in a factorial 2 x 2 x 2 with five replications, two systems of planting (greenhouse and field), two types of fertilizers (mineral and organic) and two seasons (autumn and spring). The results of essential oil presented the same composition for all the treatments. However, the relative proportion of some chemical constituents was altered according to the planting in greenhouse or in field and organic or mineral fertilizer. Carvacrol, terpinene, ortho-cymene were the major constituents. The spring season and the field conditions favored better essential oil yield and carvacrol production.
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Claims 8
Claim · model-written summary
Essential oil had the same constituent composition across treatments.
- Taxon
- oregano
Origanum vulgaret0 - Treatment
- all the treatmentse0
- Outcome
- essential oile0
- Direction
- same compositione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results of essential oil presented the same composition for all the treatments.”
t0“oregano essential oil”
Claim · model-written summary
Greenhouse versus field planting changed relative proportions of some oil constituents.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- planting in greenhousee0
- Outcome
- relative proportion of some chemical constituentse0
- Direction
- alterede0
- Comparator
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative proportion of some chemical constituents was altered according to the planting in greenhouse or in field and organic or mineral fertilizer.”
t0“oregano essential oil”
Claim · model-written summary
Organic versus mineral fertilizer changed relative proportions of some oil constituents.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- organice0
- Outcome
- relative proportion of some chemical constituentse0
- Direction
- alterede0
- Comparator
- mineral fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative proportion of some chemical constituents was altered according to the planting in greenhouse or in field and organic or mineral fertilizer.”
t0“oregano essential oil”
Claim · model-written summary
Carvacrol, terpinene and ortho-cymene were the major essential oil constituents.
- Taxon
- oreganoOriganum vulgaret0
- Outcome
- Carvacrol, terpinene, ortho-cymenee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carvacrol, terpinene, ortho-cymene were the major constituents.”
t0“oregano essential oil”
Claim · model-written summary
Spring favored essential oil yield.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- spring seasone0
- Outcome
- essential oil yielde0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spring season and the field conditions favored better essential oil yield and carvacrol production.”
t0“oregano essential oil”
Claim · model-written summary
Field conditions favored essential oil yield.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- field conditionse0
- Outcome
- essential oil yielde0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spring season and the field conditions favored better essential oil yield and carvacrol production.”
t0“oregano essential oil”
Claim · model-written summary
Spring favored carvacrol production.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- spring seasone0
- Outcome
- carvacrol productione0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spring season and the field conditions favored better essential oil yield and carvacrol production.”
t0“oregano essential oil”
Claim · model-written summary
Field conditions favored carvacrol production.
- Taxon
- oreganoOriganum vulgaret0
- Treatment
- field conditionse0
- Outcome
- carvacrol productione0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The spring season and the field conditions favored better essential oil yield and carvacrol production.”
t0“oregano essential oil”
The same questions in other papers
climate site · yield · Origanum vulgare (oregano)Results agree
1 paper in the same direction as this paper
- 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.