Influence of Single and Combined Mixtures of Metal Oxide Nanoparticles on Eggplant Growth, Yield, and Verticillium Wilt Severity

Verticillium wilt, caused by Verticillium dahliae, is one of the major diseases of eggplants. Nanoparticles (NPs) of CuO, Mn2O3, and ZnO were sprayed alone onto leaves of young eggplants and in different combinations and rates, and then seedlings were transplanted into soil infested with V. dahliae...

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Veröffentlicht in:Plant disease. - 1997. - 105(2021), 4 vom: 11. Apr., Seite 1153-1161
1. Verfasser: Elmer, Wade H (VerfasserIn)
Weitere Verfasser: de la Torre-Roche, Roberto, Zuverza-Mena, Nubia, Adisa, Ishaq H, Dimkpa, Christian, Gardea-Torresdey, Jorge, White, Jason C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article CuO Mn2O3 Verticillium dahliae ZnO disease management disease suppression fungi nanoparticles vegetables mehr... Oxides Copper 789U1901C5
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520 |a Verticillium wilt, caused by Verticillium dahliae, is one of the major diseases of eggplants. Nanoparticles (NPs) of CuO, Mn2O3, and ZnO were sprayed alone onto leaves of young eggplants and in different combinations and rates, and then seedlings were transplanted into soil infested with V. dahliae in the greenhouse and field between 2015 and 2018. All combinations of NPs were consistently less effective than CuO NPs applied alone at 500 µg/ml at increasing disease suppression, biomass, and fruit yield. CuO NPs were associated with an increase in fruit yield (17 and 33% increase) and disease suppression (28 and 22% reduction) in 2016 and 2017, respectively, when compared with untreated controls. However, this effect was negated in the greenhouse and field experiments when CuO NPs were combined with Mn2O3. Combining NPs of CuO with ZnO resulted in variable effects; amendments increased growth and suppressed disease in greenhouse experiments, but results were mixed in the field. Leaf tissue analyses from the greenhouse experiments showed that Cu concentration in leaves was reduced when CuO NPs were combined with other NPs, even when application rates were the same amount. A simple competition for entry sites may explain why combinations of CuO NPs and Mn2O3 NPs reduced efficacy but does not explain the lack of inhibition between Cu and Zn. NPs of CuO performed better than their larger bulk equivalent, and studies on application rate found 500 µg/ml was optimal. No phytotoxicity, as determined, by leaf burning, necrotic spots, or dead apical buds was noted even at the highest combined rates of 1,500 µg/ml 
650 4 |a Journal Article 
650 4 |a CuO 
650 4 |a Mn2O3 
650 4 |a Verticillium dahliae 
650 4 |a ZnO 
650 4 |a disease management 
650 4 |a disease suppression 
650 4 |a fungi 
650 4 |a nanoparticles 
650 4 |a vegetables 
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650 7 |a Copper  |2 NLM 
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700 1 |a de la Torre-Roche, Roberto  |e verfasserin  |4 aut 
700 1 |a Zuverza-Mena, Nubia  |e verfasserin  |4 aut 
700 1 |a Adisa, Ishaq H  |e verfasserin  |4 aut 
700 1 |a Dimkpa, Christian  |e verfasserin  |4 aut 
700 1 |a Gardea-Torresdey, Jorge  |e verfasserin  |4 aut 
700 1 |a White, Jason C  |e verfasserin  |4 aut 
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