Abstract
Abstract The nematicidal efficiency of two types of extracts (aqueous and methanolic) of 5 plants Peganum harmala L., Raphanus raphanistrum L . , Taxus baccata L., Sinapis arvensis L . , and Ricinus communis L. on second stage juveniles (J2s) of Meloidogyne incognita was evaluated at 4 doses in vitro (40, 50, 60 and 80%) at 4 exposure times (12, 16, 24, and 32 h). In a greenhouse, methanol extracts obtained from 0.75, 1.5, or 3 g of the dry matter of T. baccata , S. arvensis , and P. harmala were added in pots of tomato plants (Moneymaker cultivar) to test the effect of the extracts on the nematode, its reproduction, and the plant’s growth. After 32 h of exposure, the in vitro results on J2s showed that all the aqueous and methanolic extracts of the 5 plants had positive effects on J2 mortality compared to controls; water and DMSO (2%) (dimethyl sulfoxyde). In general, methanolic extracts were significantly more effective than the aqueous ones. Methanolic extracts of T. baccata , P. harmala , and S. arvensis had the highest mortality rates (100, 89.2, 86.6%), respectively, followed by the aqueous extract of T. baccata (73.8%). After 12 days, the hatching inhibition varies between (61.4%) for the aqueous extract of R. communis and (84.2%) for the methanolic extract of T. baccata . The average was significantly different from controls (DMSO 23.8 and water 21.8%) for all extracts. Methanolic extracts were not always significantly different than the aqueous ones. In vivo methanolic extracts of S. arvensis, P. harmala , and T. baccata reduced infestation than the controls. The gall index varied between 3.5 and 5.5 for the extracts than the positive control 6.5. The present study revealed the effectiveness of all tested plant extracts to root-knot nematodes without any chemical inputs.
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Claims 7
Claim · model-written summary
Aqueous extracts increased juvenile mortality after 32 hours relative to controls.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- aqueouse0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitat0pest - Outcome
- J2 mortalitye0
- Qualifier
- After 32 h of exposuree0
- Comparator
- controls; water and DMSO (2%)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“After 32 h of exposure, the in vitro results on J2s showed that all the aqueous and methanolic extracts of the 5 plants had positive effects on J2 mortality compared to controls; water and DMSO (2%)”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Methanolic extracts increased juvenile mortality after 32 hours relative to controls.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- methanolic extractse0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- J2 mortalitye0
- Comparator
- controls; water and DMSO (2%)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 32 h of exposure, the in vitro results on J2s showed that all the aqueous and methanolic extracts of the 5 plants had positive effects on J2 mortality compared to controls; water and DMSO (2%)”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Methanolic extracts were generally more effective than aqueous extracts.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- methanolic extractse0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- more effectivee0
- Direction
- more effectivee0
- Comparator
- aqueous onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“methanolic extracts were significantly more effective than the aqueous ones”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Methanolic T. baccata extract produced 100% juvenile mortality.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- Methanolic extracts of T. baccatae0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- mortality ratese0
- Direction
- higheste0
- Value
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanolic extracts of T. baccata , P. harmala , and S. arvensis had the highest mortality rates (100, 89.2, 86.6%), respectively”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Methanolic P. harmala extract produced 89.2% juvenile mortality.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- P. harmalae0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- mortality ratese0
- Direction
- higheste0
- Value
- 89.2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanolic extracts of T. baccata , P. harmala , and S. arvensis had the highest mortality rates (100, 89.2, 86.6%), respectively”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Methanolic S. arvensis extract produced 86.6% juvenile mortality.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- S. arvensise0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- mortality ratese0
- Direction
- higheste0
- Value
- 86.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanolic extracts of T. baccata , P. harmala , and S. arvensis had the highest mortality rates (100, 89.2, 86.6%), respectively”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
Claim · model-written summary
Aqueous T. baccata extract yielded 73.8% juvenile mortality.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- aqueous extract of T. baccatae0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pest
- Outcome
- mortality ratese0
- Value
- 73.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanolic extracts of T. baccata , P. harmala , and S. arvensis had the highest mortality rates (100, 89.2, 86.6%), respectively, followed by the aqueous extract of T. baccata (73.8%)”
t0“Meloidogyne incognita (Kofoid and White) Chitwood in Algeria under laboratory and greenhouse conditions”
e1“pots of tomato plants (Moneymaker cultivar)”
The same questions in other papers
botanical · Meloidogyne incognita · Solanum lycopersicum (tomato)Positive and negative results
114 papers in the same direction as this paper · 2 in the opposite direction
- positive
- no effect
- negative
113 papers more in this group
See all 117 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.