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Nematicidal effects of silver nanoparticles (AG-NPs) on the root-knot nematode, Meloidogyne javanica associated with Swiss chard (Beta vulgaris L.)

F. Daramola

F. Daramola

Department of Agriculture, Cape Peninsula University of TechnologySouth Africa
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Daramola, F.
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N. Lewu

N. Lewu

Soil and Water Science Programme, ARC Infruitec-NietvoorbijStellenbosch, South Africa
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Lewu, N.
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J. Nkiko

J. Nkiko

Department of Agriculture, Cape Peninsula University of TechnologySouth Africa
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Nkiko, J.
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F. Lewu

F. Lewu

Department of Agriculture, Cape Peninsula University of TechnologySouth Africa
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Lewu, F.
  
22 sept 2023
Nematicidal effects of silver nanoparticles (AG-NPs) on the root-knot nematode, Meloidogyne javanica associated with Swiss chard (Beta vulgaris L.)'s Cover Image
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Publicado en línea: 22 sept 2023
Páginas: 189 - 195
Recibido: 10 nov 2022
Aceptado: 30 may 2023
DOI: https://doi.org/10.2478/helm-2023-0018
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© 2023 F. Daramola et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1.

A – B: Root systems of infected Swiss chard plants showing root galls and egg masses of M. javanica. C: Galled roots with stained egg masses of infected Swiss chard as viewed under a stereomicroscope. egm=egg mass; g=galls.
A – B: Root systems of infected Swiss chard plants showing root galls and egg masses of M. javanica. C: Galled roots with stained egg masses of infected Swiss chard as viewed under a stereomicroscope. egm=egg mass; g=galls.

Fig. 2.

RKN infected Swiss chards showing pale coloured leaves.
RKN infected Swiss chards showing pale coloured leaves.

Effect of Ag-NP on the number of egg mass, juveniles, and reproduction of Meloidogyne javanica on Swiss chard_

Treatments (Ag-NP) Egg masses /root system Juveniles/root system Reproduction factor RF (pf/pi)
Control 254.14a 29946.14a 9.98a
1 μg/mL 244.43ab 28021.71a 9.34a
2 μg/mL 130.86ab 13661.71ab 4.55ab
3 μg/mL 115.14b 2909.71b 0.92b

Pearson correlations between variables of M_ javanica reproduction and Ag-NP treatments_

Variables Treatments Egg masses/root system Juveniles/root system Reproduction factor (RF)
Treatments 1
Egg masses/root system −.482** 1
Juveniles/root system −.604** .781** 1
Reproduction factor −.606** .780** 1.000** 1
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Temas de la revista:
Ciencias de la vida, Zoología, Ecología, Ciencias de la vida, otros, Medicina, Medicina Clínica, Microbiología, virología y epidemiología
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