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Título : Nematicidal activity of essential oils and organic amendments from Asteraceae against root-knot nematodes
Autor : Pérez, M. P.; Navas Cortés, Juan Antonio; Pascual-Villalobos, M. P.; Castillo, Pablo
Fecha de publicación : 3-jun-2003
Editor: Blackwell Publishing
Citación : Plant Pathology 52: 395-401 (2003)
Resumen: The essential oil of Chrysanthemum coronarium flowerheads showed strong nematicidal activity in vitro and in growthchamber experiments. Essential oil concentrations of 2, 4, 8 and 16 μL mL−1, significantly reduced hatch, J2 survival (determined by final value and area under curves of cumulative percentage hatch or mortality) and reproduction rate of Meloidogyne artiellia in vitro, with the lowest values occurring at 16 μL mL−1. In pot trials with chickpea cv. PV 61, essential oil concentrations of 10–40 μL per 500 cm3 soil, applied on sterile cotton pellets, also significantly reduced the nematode’s reproduction rate. The biological processes of mortality and hatching/reproduction were adequately described by the monomolecular and expanded negative exponential models, respectively. Effectiveness of soil amendment with either flowers, leaves, roots or seeds of C. coronarium, and flowers from several species of Asteraceae (Chrysanthemum segetum, Calendula maritima, Calendula officinalis and Calendula suffruticosa) at 5 g per 500 cm3 soil was tested for suppression of M. artiellia and growth of chickpea cv. PV 61 under growth-chamber conditions. In these tests, flowers of all five Asteraceae species and various parts of C. coronarium significantly reduced reproduction rates of M. artiellia, by 83·0–95·9%, with the minimum rates occurring in infected chickpea plants amended with flowers of C. officinalis and C. suffruticosa. The in vitro and in planta results suggest that the essential oil of C. coronarium and organic amendments from Asteraceae species may serve as nematicides.
Versión del editor: http://dx.doi.org/10.1046/j.1365-3059.2003.00859.x
URI : http://hdl.handle.net/10261/7616
DOI: 10.1046/j.1365-3059.2003.00859.x
ISBN : 0032-0862
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