Journal of Food, Agriculture and Environment
Vol 11,
Issue 3&4,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Chemical extracts of oilseed radish in resistance induction and Meloidogyne incognita control
Author(s):
Heriksen H. Puerari 1*,
Cláudia R. Dias-Arieira 1, Jailson de O. Arieira 1, Adriano A. Silva 2, Simone M. Santana 1, Tiago R. Benetoli da Silva 1, Fabio Biela 1Recieved Date: 2013-02-12, Accepted Date: 2013-10-20
Abstract:The aim was to evaluate the activity of chemical extracts of oilseed radish on the population of Meloidogyne incognita in tomato. Tomato plantlets around fifteen days after germination were transplanted and treated with the extracts (butanolic, ethyl acetate, aqueous and aqueous precipitate fractions-APF) obtained from the aerial part of the radish. The extracts were diluted to obtain concentrations of 0.1, 0.5, 1.0, 2.0 and 5.0 ppm. Distilled water was used as the control (0 ppm). The aerial parts of the tomato plants were sprayed three days after transplanting, and a further three time at intervals of one week, whereas the roots were treated by immersion in the suspensions for two hour prior to transplanting and then treating the soil at weekly intervals. Three days after the first treatment, the plantlets were inoculated with 2,000 eggs of M. incognita. After the last treatment, the plants were allowed to stand for seven days and then collected for analysis. Root and aerial part fresh mass, aerial part dry mass and number of galls and eggs on the roots were evaluated. Irrespective of the kind of treatment (aerial part or roots/soil), the butanolic extract reduced the number of eggs, indicating its potential in the control of nematodes. However, it also impaired plant development when applied to the aerial part.
Keywords:Alternative management,
brassicas, phytonematodes, plant extractsJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Agriculture
Pages: 652-655
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