Abstract
Abstract The objective of this research was to evaluate the effect of the combination of Pochonia chlamydosporia var. chlamydosporia with summer and winter cover plants on the control of Meloidogyne javanica on tomato plants under glasshouse conditions. Treatment combinations were with four soil covers (pearl millet and Surinam grass in Experiment 1, oil radish and black oat in Experiment 2; plus tomato and fallow controls) and two P. chlamydosporia treatments (with or without the fungus). The antagonist was applied to nematode-infested soil when the cover crops or tomato were planted. Tomato plants were removed and the above-ground parts of the cover crops were cut, dried, and placed on the pots 60 days after planting. One tomato seedling was transplanted in each pot in a no-tillage system and cultivated for 60 days. Surinam grass, pearl millet and black oat reduced galls and eggs of M. javanica by more than 90%, without application of the fungus. However, P. chlamydosporia + Surinam grass significantly reduced by 72% the number of galls compared with cultivation of the grass in soil without the fungus. Pochonia chlamydosporia became established in soil and could be re-isolated at the end of both experiments. Colony forming units (CFU) (g soil) –1 varied from 1.0 × 10 5 (fallow) to 2.6 × 10 5 (pearl millet) and from 1.1 × 10 5 (fallow) to 2.3 × 10 5 (oil radish) for the experiments with summer soil cover crops and winter soil cover crops, respectively. The cultivation of Surinam grass, pearl millet and black oat reduced M. javanica populations, and the combination with P. chlamydosporia may favour the establishment of the fungus in the soil and enhance the control of the nematode.
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Claims 8
Claim · model-written summary
Surinam grass reduced galls and eggs of M. javanica by more than 90% without the fungus.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Surinam grasse2
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Outcome
- galls and eggse2
- Direction
- reducede2
- Value
- more than 90%e2
- Qualifier
- without application of the funguse2
- Comparator
- tomato and fallow controlse1
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e1“plus tomato and fallow controls”
e2“Surinam grass, pearl millet and black oat reduced galls and eggs of M. javanica by more than 90%, without application of the fungus”
Claim · model-written summary
Pearl millet reduced galls and eggs of M. javanica by more than 90% without the fungus.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- pearl millete2
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Outcome
- galls and eggse2
- Direction
- reducede2
- Value
- more than 90%e2
- Qualifier
- without application of the funguse2
- Comparator
- tomato and fallow controlse1
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e1“plus tomato and fallow controls”
e2“Surinam grass, pearl millet and black oat reduced galls and eggs of M. javanica by more than 90%, without application of the fungus”
Claim · model-written summary
Black oat reduced galls and eggs of M. javanica by more than 90% without the fungus.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- black oate2
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Outcome
- galls and eggse2
- Direction
- reducede2
- Value
- more than 90%e2
- Qualifier
- without application of the funguse2
- Comparator
- tomato and fallow controlse1
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e1“plus tomato and fallow controls”
e2“Surinam grass, pearl millet and black oat reduced galls and eggs of M. javanica by more than 90%, without application of the fungus”
Claim · model-written summary
P. chlamydosporia with Surinam grass significantly reduced the number of galls by 72% compared with grass without the fungus.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- P. chlamydosporia + Surinam grasse3
- Interactor
- M. javanicaMeloidogyne javanicae2pest
- Second interactor
- P. chlamydosporiaPochonia chlamydosporiae3biocontrol_agent
- Outcome
- number of gallse3
- Direction
- reducede3
- Value
- 72%e3
- Comparator
- cultivation of the grass in soil without the funguse3
- Setting
- glasshouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e2“Surinam grass, pearl millet and black oat reduced galls and eggs of M. javanica by more than 90%, without application of the fungus”
e3“P. chlamydosporia + Surinam grass significantly reduced by 72% the number of galls compared with cultivation of the grass in soil without the fungus”
Claim · model-written summary
Pochonia chlamydosporia became established in soil and could be re-isolated at the end of both experiments.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Pochonia chlamydosporiaPochonia chlamydosporiae4biocontrol_agent
- Outcome
- became established in soile4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e4“Pochonia chlamydosporia became established in soil and could be re-isolated at the end of both experiments”
Claim · model-written summary
In the summer cover crop experiment, colony forming units of the fungus ranged from 1.0 × 10 5 (fallow) to 2.6 × 10 5 (pearl millet) per gram of soil.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- Colony forming units (CFU)e5
- Value
- 1.0 × 10 5 (fallow) to 2.6 × 10 5 (pearl millet)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e5“Colony forming units (CFU) (g soil) –1 varied from 1.0 × 10 5 (fallow) to 2.6 × 10 5 (pearl millet)”
Claim · model-written summary
In the winter cover crop experiment, colony forming units of the fungus ranged from 1.1 × 10 5 (fallow) to 2.3 × 10 5 (oil radish) per gram of soil.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- Colony forming units (CFU)e5
- Value
- 1.1 × 10 5 (fallow) to 2.3 × 10 5 (oil radish)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e5“Colony forming units (CFU) (g soil) –1 varied from 1.0 × 10 5 (fallow) to 2.6 × 10 5 (pearl millet)”
e6“from 1.1 × 10 5 (fallow) to 2.3 × 10 5 (oil radish)”
Claim · model-written summary
The combination with P. chlamydosporia may favour establishment of the fungus in soil and enhance control of the nematode.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- combination with P. chlamydosporiae1
- Outcome
- enhance the control of the nematodee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of Meloidogyne javanica on tomato plants under glasshouse conditions”
e1“the combination with P. chlamydosporia may favour the establishment of the fungus in the soil and enhance the control of the nematode”
The same questions in other papers
Pochonia chlamydosporia · Meloidogyne javanica · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
2 papers more in this group
See all 6 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.