Abstract
The effectiveness of soil fumigation with 50, 100 and 200 µL kg−1 soil of essential oils (EOs) from the plant species Eucalyptus citriodora, Eucalyptus globulus, Mentha piperita, Pelargonium asperum and Ruta graveolens was assessed against the root-knot nematode Meloidogyne incognita on potted tomato. Plant growth parameters and number of galls, nematode eggs and juveniles on tomato roots were evaluated after two months of maintenance of the treated plants at 25°C in greenhouse. EOs of E. globulus and P. asperum significantly reduced nematode multiplication and gall formation on tomato roots at all the tested rates, whereas the EOs of E. citriodora, M. piperita and R. graveolens were more suppressive at levels greater than 50 µL kg−1 soil. Biofumigation with EOs of E. globulus and P. asperum resulted also in the largest increase of tomato plant top and root biomass. The five samples of EOs had a different chemical composition as determined by GC and GC-MS. Structure–activity relationship based on the main constituents of the tested EOs and their nematicidal effect on M. incognita is discussed.
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Claims 8
Claim · model-written summary
Eucalyptus globulus oil significantly reduced nematode multiplication and gall formation on tomato roots at all tested rates.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- rootse0
- Treatment
- E. globuluse0
- Outcome
- nematode multiplication and gall formatione0
- Direction
- reducede0
- Qualifier
- at all the tested ratese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs of E. globulus and P. asperum significantly reduced nematode multiplication and gall formation on tomato roots at all the tested rates”
t0“tomato”
Claim · model-written summary
Pelargonium asperum oil significantly reduced nematode multiplication and gall formation on tomato roots at all tested rates.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- rootse0
- Treatment
- P. asperume0
- Outcome
- nematode multiplication and gall formatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs of E. globulus and P. asperum significantly reduced nematode multiplication and gall formation on tomato roots at all the tested rates”
t0“tomato”
Claim · model-written summary
Eucalyptus citriodora oil was more suppressive above 50 µL kg−1 soil.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- E. citriodorae0
- Outcome
- suppressivee0
- Direction
- more suppressivee0
- Qualifier
- greater than 50 µL kg−1 soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs of E. citriodora, M. piperita and R. graveolens were more suppressive at levels greater than 50 µL kg−1 soil”
t0“tomato”
Claim · model-written summary
Mentha piperita oil was more suppressive above 50 µL kg−1 soil.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- M. piperitae0
- Outcome
- suppressivee0
- Direction
- more suppressivee0
- Qualifier
- greater than 50 µL kg−1 soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs of E. citriodora, M. piperita and R. graveolens were more suppressive at levels greater than 50 µL kg−1 soil”
t0“tomato”
Claim · model-written summary
Ruta graveolens oil was more suppressive above 50 µL kg−1 soil.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- R. graveolense0
- Outcome
- suppressivee0
- Direction
- more suppressivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“EOs of E. citriodora, M. piperita and R. graveolens were more suppressive at levels greater than 50 µL kg−1 soil”
t0“tomato”
Claim · model-written summary
Eucalyptus globulus oil produced one of the largest increases in tomato top and root biomass.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- E. globuluse0
- Outcome
- top and root biomasse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biofumigation with EOs of E. globulus and P. asperum resulted also in the largest increase of tomato plant top and root biomass”
Claim · model-written summary
Pelargonium asperum oil produced one of the largest increases in tomato top and root biomass.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- P. asperume0
- Outcome
- top and root biomasse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biofumigation with EOs of E. globulus and P. asperum resulted also in the largest increase of tomato plant top and root biomass”
Claim · model-written summary
The five essential-oil samples differed in chemical composition.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- chemical compositione0
- Direction
- differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The five samples of EOs had a different chemical composition”
t0“tomato”
The same questions in other papers
Eucalyptus globulus · pest · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
Eucalyptus globulus · growth · Solanum lycopersicum (tomato)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.