Abstract
Meloidogyne incognita, on four groundnut (Arachis hypogaea L.) varieties. The efficacy aqueous leaf extracts of Lantana camara and Parkia biglobosa in the management of M. incognita infecting the groundnut varieties was also investigated. A preliminary study was first carried out from November 2014 – January 2015 in a screen house to access the pathogenicity of M. incognita on the four varieties of groundnut. Results obtained from soil and root nematode population led to field trials which involved the management of M. incognita using botanicals. The field experiment which was a 4x3 factorial fitted into Randomized Complete Block Design (RCBD) commenced in August, 2015. The effects of treatment on plants’ height, number of leaves, weight of fruits and on the population of root and soil nematodes were determined. Phytochemical screening of the active components in the test plant extracts was also conducted. Data collected were subjected to analysis of variance (ANOVA) and significant means were separated using Fisher’s protected LSD. Results from the study revealed that the growth parameters, yields and nematode population were significantly higher (p < 0.05) for the treatment combinations of L. camara and P. biglobosa than the control L. camara leaves extract at 100% performed better than P. biglobosa with respect to all the data measured. Phytochemical analysis revealed the presence of alkaloids, saponin, tannin, flavonoids, phenol and glycosides as the active chemical components in the test plants. This bio–active components were responsible for the nematotoxic effect of the leaf extracts. However results indicate that both aqueous extracts of L. camara and P. biglobosa can be used to manage the root-knot nematodes and increase the yield of groundnut without any toxic effects on the plants.Keywords: Lantana camara, Parkia biglobosa, Meloidogyne incognita, Aqueous leaf extract and Pathogenicity
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Claims 7
Claim · model-written summary
growth parameters were significantly higher under the combined botanical treatment than control.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- treatment combinations of L. camara and P. biglobosae0
- Outcome
- growth parameterse0
- Direction
- highere0
- Comparator
- controle0
Not reportedInteractorInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from the study revealed that the growth parameters, yields and nematode population were significantly higher (p < 0.05) for the treatment combinations of L. camara and P. biglobosa than the control”
t0“selected groundnut varieties”
Claim · model-written summary
yields were significantly higher under the combined botanical treatment than control.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- treatment combinations of L. camara and P. biglobosae0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- controle0
Not reportedInteractorInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from the study revealed that the growth parameters, yields and nematode population were significantly higher (p < 0.05) for the treatment combinations of L. camara and P. biglobosa than the control”
t0“selected groundnut varieties”
Claim · model-written summary
nematode population were significantly higher under the combined botanical treatment than control.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- treatment combinations of L. camara and P. biglobosae0
- Outcome
- nematode populatione0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results from the study revealed that the growth parameters, yields and nematode population were significantly higher (p < 0.05) for the treatment combinations of L. camara and P. biglobosa than the control”
t0“selected groundnut varieties”
Claim · model-written summary
Lantana leaf extract at 100% outperformed Parkia extract across measured outcomes.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- L. camara leaves extract at 100%e0
- Outcome
- all the data measurede0
- Direction
- bettere0
- Comparator
- P. biglobosae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L. camara leaves extract at 100% performed better than P. biglobosa with respect to all the data measured”
t0“selected groundnut varieties”
Claim · model-written summary
Phytochemical analysis detected alkaloids, saponin, tannin in the test plant extracts.
- Taxon
- Lantana camara L.
_mit_Insekt.jpg?width=60)
Lantana camarat0 - Outcome
- alkaloids, saponin, tannine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_mit_Insekt.jpg?width=500)
Verbatim
e0“Phytochemical analysis revealed the presence of alkaloids, saponin, tannin, flavonoids, phenol and glycosides as the active chemical components in the test plants”
t0“wild sage (Lantana camara L.) and locust bean (Parkia biglobosa Jacq.)”
Claim · model-written summary
Phytochemical analysis detected flavonoids, phenol and glycosides in the test plant extracts.
- Taxon
- Lantana camara L.Lantana camarat0
- Outcome
- flavonoids, phenol and glycosidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytochemical analysis revealed the presence of alkaloids, saponin, tannin, flavonoids, phenol and glycosides as the active chemical components in the test plants”
t0“wild sage (Lantana camara L.) and locust bean (Parkia biglobosa Jacq.)”
Claim · model-written summary
The authors attributed the extracts’ nematotoxicity to their bioactive components.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- nematotoxic effect of the leaf extractse0
- Qualifier
- bio–active componentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This bio–active components were responsible for the nematotoxic effect of the leaf extracts”
t0“selected groundnut varieties”
The same questions in other papers
Lantana camara · growth · Arachis hypogaea (peanut)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.