Figure 3 - uploaded by Filomena Milano
Content may be subject to copyright.
Context in source publication
Context 1
... R+C+O and ½ R+C+O gave a significant reduction of the V. faba primary root, compared to the control. The R+C+O mixture at both the concentrations, also concerning the Total Germination percentage and the Germination Index, were significantly different compared to the control (Figure 3). Furthermore, the use of an emulsifier based on soy seems not to exert any phytotoxic effect (H 2 O = 29.57mm; ...
Similar publications
Citations
... In our preview studies, we evaluated the use of single essential oils and essential oils mixtures (two or three oils) against the cucurbit powdery mildew pathogen Podosphaera fusca (synonym Podosphaera xanthii), in zucchini plants (var. Romanesco) cultivated in greenhouse, as unique treatments or alternated with synthetic fungicides as maintaining strategy [7,8]. We also assessed the potential genotoxicity and phytotoxicity of these oils by laboratory testing and any residuals in soils using the in vivo model system (Vicia faba), because it is important to know all the potential biological effects and chemical changes caused by their uses in agriculture [9,10]. ...
... Our results highlighted the efficacy of the two and three essential oils mixtures against Podosphaera fusca, with a very satisfactory disease control achieved in term of disease incidence and disease severity reduction, without any phytotoxic effect in treated plants after the compounds application [8]. The two different mixture tested demonstrated a dose-dependent activity and the three oils mixture is effective and less phytotoxic compared to the single oil and the two oils mixture due to the lower concentration of single component [9,10]. ...
... EOs are already used as antimicrobial food preservatives because they are classified by the FDA (Food and Drug Administration) as GRAS (Generally recognized as safe) for ingestion (Kabara 1991). Our previous studies have shown that some EOs possess antifungal activity against zucchini powdery mildew (Sturchio et al. 2014;Donnarumma et al. 2015Donnarumma et al. , 2017. The aim of this study was to determine the extent of the control of powdery mildew disease on zucchini plants achieved through foliar applications of EOs, single and in combination. ...
... Reducing surface tension was pivotal to improve formulation stability therefore EOs were emulsified with a commercial product based on poly-p-menthene (also known as pinolene) instead of Tween 20® or Fitoil®, as in Donnarumma et al. (2015Donnarumma et al. ( , 2017. In previous works we tested different co-formulants to obtain stable formulations for the application in the field. ...
For many years, plant protection products have been used to manage plant diseases in agriculture, contributing to increase agricultural production. However, plant protection products could cause undesirable adverse effects on human health and the environment. This research aims to highlight the efficacy of plant protection strategies based on natural products. In order to find an alternative to the use of synthetic fungicides, different formulates based on essential oils, single and in combination, have been tested against zucchini powdery mildew. Their effectiveness against fungal pathogens has been studied extensively, showing that their antifungal activity is closely associated with monoterpenic phenols, i.e. thymol, carvacrol, eugenol. The tested essential oils included Rosmarinus officinalis (L.), Syzygium aromaticum (L.) Merr. & L.M. Perry and Origanum vulgare (L.). The performed experiments pointed out that when using the combination of essential oils, the formulate showed better disease protection compared to the ones based on single oils, confirming the results obtained in previous trials. The good level of disease reduction, also observed in these trials, allows us to carry on the work for the development of formulations based on essential oils at low dosages, taking advantage of the essential oils mixtures’ synergistic effect.
