Abstract
BACKGROUND: Activators of systemic acquired resistance (SAR), such as salicylic acid (SA) and its synthetic functional analogues benzo(1,2,3)thiadiazole-7-carbothionic acid-S-methyl ester (BTH) and 2,6-dichloroisonicotinic acid (INA), were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita. Effects on plant fitness, nematode reproduction and root galling were screened in relation to different methods of application, to different applied dosages of chemicals and to different plant growth stages. Dosages applied to plants were in relation to plant weights. These chemicals were also tested for their possible nematotoxic activity in vitro. RESULTS: Soil drenches of SA and INA and root dip application of SA and BTH inhibited nematode reproduction, at specific dosage ranges, without affecting plant growth. SA and INA were able to reduce root galling as well. Foliar sprays of both SA and BTH were ineffective against nematode attacks. Plants tolerated SA more than the other chemicals tested. BTH at elevated concentrations increased the mortality of nematode juveniles and reduced egg hatching in vitro. CONCLUSIONS: SAR activators at concentrations suitable for different plant growth stages and applied by the proper method can possibly be included in IPM programmes for nematode management.
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Claims 8
Claim · model-written summary
Soil drenches of SA and INA inhibited root-knot nematode reproduction on tomato, eggplant and pepper.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Soil drenches of SA and INAe1
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae0pest - Outcome
- nematode reproductione1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e1“Soil drenches of SA and INA and root dip application of SA and BTH inhibited nematode reproduction, at specific dosage ranges, without affecting plant growth”
Claim · model-written summary
Root dip application of SA and BTH inhibited root-knot nematode reproduction on tomato, eggplant and pepper.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- root dip application of SA and BTHe1
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- nematode reproductione1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e1“Soil drenches of SA and INA and root dip application of SA and BTH inhibited nematode reproduction, at specific dosage ranges, without affecting plant growth”
Claim · model-written summary
SA and INA reduced root galling caused by root-knot nematodes.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- SA and INAe2
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- root gallinge2
- Direction
- reducee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e2“SA and INA were able to reduce root galling as well”
Claim · model-written summary
Foliar sprays of SA and BTH were ineffective against nematode attacks.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Foliar sprays of both SA and BTHe3
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- nematode attackse3
- Direction
- ineffectivee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e3“Foliar sprays of both SA and BTH were ineffective against nematode attacks”
Claim · model-written summary
Plants tolerated SA better than the other chemicals tested.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- SAe4
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- Plants toleratede4
- Direction
- tolerated SA moree4
- Comparator
- the other chemicals testede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e4“Plants tolerated SA more than the other chemicals tested”
Claim · model-written summary
BTH at elevated concentrations increased the mortality of root-knot nematode juveniles in vitro.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- BTH at elevated concentrationse5
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- mortality of nematode juvenilese5
- Direction
- increasede5
- Setting
- in vitroe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e5“BTH at elevated concentrations increased the mortality of nematode juveniles and reduced egg hatching in vitro”
Claim · model-written summary
BTH at elevated concentrations reduced egg hatching of root-knot nematodes in vitro.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- BTH at elevated concentrationse5
- Interactor
- Meloidogyne incognitaMeloidogyne incognitae0pest
- Outcome
- egg hatchinge5
- Direction
- reducede5
- Setting
- in vitroe5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e5“BTH at elevated concentrations increased the mortality of nematode juveniles and reduced egg hatching in vitro”
Claim · model-written summary
SAR activators may be included in IPM programmes for nematode management in tomato, eggplant and pepper.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- included in IPM programmes for nematode managemente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were tested on tomato, eggplant and pepper for the control of the root-knot nematode Meloidogyne incognita”
e6“SAR activators at concentrations suitable for different plant growth stages and applied by the proper method can possibly be included in IPM programmes for nematode management”
The same questions in other papers
salicylic acid · Meloidogyne incognita · Solanum lycopersicum (tomato)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
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See all 15 papers →application · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results
42 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
41 papers more in this group
See all 45 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.