Effective Management of Cucumber Powdery Mildew with Essential Oils
| Autor: | Yasser S. Mostafa, Sulaiman A. Alrumman, Saad Alamri, Ebrahem M. Eid, Ali Alshehri, El-Sayed H. E. Ziedan, Mohamed Hashem |
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| Rok vydání: | 2021 |
| Předmět: |
disease control
Plant growth Agriculture (General) Metabolite Positive control crop management Plant Science Fungus S1-972 chemistry.chemical_compound Dry weight essential oils Podosphaera xanthii biology food and beverages Effective management cucumber powdery mildew biology.organism_classification Horticulture chemistry Agronomy and Crop Science Powdery mildew Food Science |
| Zdroj: | Agriculture; Volume 11; Issue 11; Pages: 1177 Agriculture, Vol 11, Iss 1177, p 1177 (2021) |
| ISSN: | 2077-0472 |
| DOI: | 10.3390/agriculture11111177 |
| Popis: | This research evaluated the efficacy of essential oils in the management of cucumber powdery mildew. Essential oils of lemongrass, lemon, thyme, peppermint, abundance blend, purification blend, and thieves blend were tested in vitro and under greenhouse conditions in two separate experiments. The effects of essential oils were tested against powdery mildew disease at concentrations of 1.0–2.5 mL/L, and the consequent impact of the oils on plant growth was evaluated. Powdery mildew fungus, Podosphaera xanthii, was identified using sequencing of the ITS region. The essential oils significantly reduced disease incidence up to 77.3% compared with the positive control (p < 0.5). Moreover, the essential oils increased the plant length (up to 187 cm), leaf area (up to 27.5 cm2), fresh weight (up to 123 g), dry weight (up to 22.5 g), number of flowers (16.3), and metabolite content compared with the positive control (p < 0.5). Cell membrane injury decreased significantly in the oil-treated pants (p < 0.5), indicating the protective effect of essential oils. This study recommends the application of essential oils in an appropriate dose (2.5 mL/L) to protect cucumber plants against powdery mildew. Overdose of the oils (more than 2.5 mL/L) should be avoided due to adverse effects. |
| Databáze: | OpenAIRE |
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