Abstract
The effects of Meloidogyne javanica alone and in different combination with Ralstonia solanacearum on tomato were investigated. The highest shoot length reduction (32.1%) was at the highest density of both the parasites over control. The highest initial population density of M. javanica was solely responsible for the highest root length reduction (33.25%) and shoot dry weight reduction (67.44%). The highest density of R. solanacearum is solely responsible for root fresh weight reduction (22.28-30.85%) irrespective of M. javanica densities. Higher density of M. javanica produced higher root fresh weight (1.69 - 1.96 g) in the absence of R. solanacearum over control (1.75 g). The gall intensity was dose dependent in absence of R. solanacearum. However, in the presence of R. solanacearum at its higher density, M. javanica produced lowest number of galls (20.9-34.7). The synergistic effects on percent wilt incidences (52 - 95%) were more prominent at lower levels of R. solanacearum population with pathogenic levels of M. javanica. Conclusively, the role of M. javanica is synergistic only if the density of R. solanacearum is lower than 105 cfug-1 soil, however, higher R. solanacearum population (107-109 cfug-1 soil) drastically inhibits the activity of root-knot nematode in the rhizosphere.
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Claims 10
Claim · model-written summary
Combined high densities reduced shoot length by 32.1%.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- highest density of both the parasitese0
- Outcome
- shoot lengthe0
- Direction
- reductione0
- Value
- 32.1%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The highest shoot length reduction (32.1%) was at the highest density of both the parasites over control.”
Claim · model-written summary
Highest nematode density reduced root length by 33.25%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- highest initial population density of M. javanicae0
- Outcome
- root lengthe0
- Direction
- reductione0
- Value
- 33.25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The highest initial population density of M. javanica was solely responsible for the highest root length reduction (33.25%) and shoot dry weight reduction (67.44%).”
Claim · model-written summary
Highest nematode density reduced shoot dry weight by 67.44%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- highest initial population density of M. javanicae0
- Outcome
- shoot dry weighte0
- Direction
- reductione0
- Value
- 67.44%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The highest initial population density of M. javanica was solely responsible for the highest root length reduction (33.25%) and shoot dry weight reduction (67.44%).”
Claim · model-written summary
Highest bacterial density reduced root fresh weight by 22.28-30.85%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- highest density of R. solanacearume0
- Outcome
- root fresh weighte0
- Direction
- reductione0
- Value
- 22.28-30.85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The highest density of R. solanacearum is solely responsible for root fresh weight reduction (22.28-30.85%) irrespective of M. javanica densities.”
Claim · model-written summary
Higher nematode density raised root fresh weight without the bacterium.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Higher density of M. javanicae0
- Outcome
- root fresh weighte0
- Direction
- highere0
- Value
- 1.69 - 1.96 ge0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“Higher density of M. javanica produced higher root fresh weight (1.69 - 1.96 g) in the absence of R. solanacearum over control (1.75 g).”
Claim · model-written summary
Gall intensity depended on nematode dose without the bacterium.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- R. solanacearume0
- Outcome
- gall intensitye0
- Qualifier
- dose dependente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The gall intensity was dose dependent in absence of R. solanacearum.”
Claim · model-written summary
At higher bacterial density, nematode gall counts were lowest.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- R. solanacearum at its higher densitye0
- Outcome
- M. javanica produced lowest number of gallse0
- Direction
- loweste0
- Value
- 20.9-34.7e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“However, in the presence of R. solanacearum at its higher density, M. javanica produced lowest number of galls (20.9-34.7).”
Claim · model-written summary
Combined infection had synergistic wilt incidence of 52 - 95% at lower bacterial densities.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- lower levels of R. solanacearum population with pathogenic levels of M. javanicae0
- Outcome
- percent wilt incidencese0
- Direction
- more prominente0
- Value
- 52 - 95%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“The synergistic effects on percent wilt incidences (52 - 95%) were more prominent at lower levels of R. solanacearum population with pathogenic levels of M. javanica.”
Claim · model-written summary
Nematode synergy occurred only below a bacterial density threshold.
- Taxon
- tomatoSolanum lycopersicumt0
- Interactor
- M. javanicaMeloidogyne javanicae0pathogen
- Outcome
- role of M. javanica is synergistice0
- Value
- 105 cfug-1 soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“the role of M. javanica is synergistic only if the density of R. solanacearum is lower than 105 cfug-1 soil”
Claim · model-written summary
High bacterial populations inhibited root-knot nematode activity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- higher R. solanacearum populatione0
- Outcome
- activity of root-knot nematodee0
- Direction
- inhibitse0
- Value
- 107-109 cfug-1 soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOMATO”
e0“higher R. solanacearum population (107-109 cfug-1 soil) drastically inhibits the activity of root-knot nematode in the rhizosphere.”
The same questions in other papers
Ralstonia solanacearum · growth · Solanum lycopersicum (tomato)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
2 papers more in this group
See all 6 papers →Meloidogyne javanica · growth · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
4 papers more in this group
See all 8 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.