DISSIPATION OF THIAMETHOXAM AND ITS INFLUENCE ON PHENOL LEVELS IN HEDYCHIUM CORONARIUM J. KOENIG
DOI:
https://doi.org/10.5902/2179460X17302Keywords:
Lírio-do-brejo. Inseticid. HPLC.Abstract
http://dx.doi.org/10.5902/2179460X17302
The growth of agriculture over natural environments has led to the exposition of several plant species to pesticides without the due knowledge of their effects on the physiology of these organisms. The objective of this study was to evaluate the effect of different levels of thiamethoxam on the levels of total phenols and on the chromatographic profile of Hedychium coronarium leaves and rhizomes. The plants of H. coronarium were exposed to two concentrations of thiamethoxam in a controlled environment with the application of spraying. The pesticide was detected in leaves during the first 26 days of experiment, but not in rhizomes. The levels of thiamethoxam showed an important reduction in the leaves during the experiment. The levels of total phenols were affected by the presence of thiamethoxam. The similarity in the frequency peaks in the chromatographic profile of the leaves and rhizomes showed the influence of the insecticide, in which this influence in rhizomes was more evident in the concentration of 190 mg L-1.
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