Journal of Food, Agriculture and Environment

Evaluation of Rosmarinus officinalis essential oil in inducing resistance to Meloidogyne javanica and Pratylenchus brachyurus in soybean

Author(s):

Danielle Mattei ¹, Claudia Regina Dias-Arieira ^1*, Heriksen Higashi Puerari ², Tais Santo Dadazio ¹, Miria Roldi ¹, Tiago Roque Benetoli da Silva ¹

Recieved Date: 2013-07-12, Accepted Date: 2013-10-10

Abstract:

Various plant oils and extracts have been cited as natural nematicides, but little is known about their potential use as resistance inducers. The aim of this study was to evaluate the activity of essential oil of rosemary in inducing resistance to Meloidogyne javanica and Pratylenchus brachyurus in soybean. Plantlets were treated with the essential oil at concentrations of 0, 1, 2 and 3%, applied fortnightly or monthly to the aerial part of the plant in a 4 x 2 factorial arrangement. One week after the initial application, the plants were inoculated with 2000 eggs of M. javanica or 1000 specimens of P. brachyurus. The experiments were conducted over two different periods (2011 and 2012). Evaluation was carried out 60 days after inoculation. It was observed that rosemary oil was phytotoxic to soybean in the 2012 experiment, with significant reductions in height, aerial part and root fresh weight and aerial part dry weight for plants treated fortnightly. Rosemary essential oil did not prove effective in reducing nematode populations, irrespective of the concentration or frequency of application.

Keywords:

Control, phytonematodes, plant extracts, resistance inducer, rosemary

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Agriculture
Pages: 1171-1175

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