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Herbicidal Activity of Peumus boldus and Drimys winterii Essential Oils from Chile
Instituto Agroforestal Mediterráneo, Universidad Politécnica de Valencia, Camino de Vera s/n, C.P. 46022 Valencia, Spain
Centro Regional de Estudios en Alimentos Saludables, CREAS, Blanco 1623 Of.1402, Valparaíso, Chile
Departamento de Farmacologia, Facultat de Farmàcia, Universitat de València, Avda Vicent Andrés Estellés s/n, C.P. 46100 Burjassot, Spain
* Author to whom correspondence should be addressed.
Received: 29 November 2010; in revised form: 17 December 2010 / Accepted: 7 January 2011 / Published: 10 January 2011
Abstract: The essential oil composition of Peumus boldus and Drimys winterii was analyzed by means of capillary GC-FID and GC-MS. More than 96% of the total oil components (43 and 54 compounds, respectively) were identified, with ascaridole (51.17 ± 9.51), p-cymene (16.31 ± 2.52) and 1,8-cineole (14.45 ± 2.99) as the main compounds in P. boldus and g-eudesmol (21.65 ± 0.41), followed of elemol (12.03 ± 0.34) and terpinen-4-ol (11.56 ± 1.06) in D. winterii. The herbicidal activity was tested against Amaranthus hybridus and Portulaca oleracea. P. boldus essential oil was the most phytotoxic against both weeds, inhibiting seed germination and seedling growth at all concentrations assayed (0.125–1 µL/mL). D. winterii essential oil did not show any effect on A. hybridus germination and only affected P. oleracea germination at the highest concentration. The results suggest the possible use of the essential oil from P. boldus as a natural herbicide.
Keywords: essential oils; phytotoxicity; germination; seedling growth; monoterpenes
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Verdeguer, M.; García-Rellán, D.; Boira, H.; Pérez, E.; Gandolfo, S.; Blázquez, M.A. Herbicidal Activity of Peumus boldus and Drimys winterii Essential Oils from Chile. Molecules 2011, 16, 403-411.
Verdeguer M, García-Rellán D, Boira H, Pérez E, Gandolfo S, Blázquez MA. Herbicidal Activity of Peumus boldus and Drimys winterii Essential Oils from Chile. Molecules. 2011; 16(1):403-411.
Verdeguer, Mercedes; García-Rellán, David; Boira, Herminio; Pérez, Eduardo; Gandolfo, Sandra; Blázquez, María Amparo. 2011. "Herbicidal Activity of Peumus boldus and Drimys winterii Essential Oils from Chile." Molecules 16, no. 1: 403-411.