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International Agrophysics
wydawca:Instytut Agrofizyki
im. B. Dobrzańskiego
PAN
w Lublinie
ISSN: 0236-8722


vol. 26, nr. 3 (2012)

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Monitoring of herbicide effect in maize based on electrical measurements
(pobierz wersję PDF)
I. Cseresnyés1, G. Fekete2, K.R. Végh1, A. Székács2, M. Mörtl2, K. Rajkai1
1 Research Institute for Soil Science and Agricultural Chemistry
2 Plant Protection Institute Hungarian Academy of Sciences, H-1022 Budapest, Herman O. út 15, Hungary

vol. 26 (2012), nr. 3, pp. 243-247
streszczenie The effect of the herbicide acetochlor on root growth was studied by a non-destructive electrical impedance and capacitance method in pot experiments on maize. Acetochlor was applied both as single active ingredient and mixed with safener AD-67 in two dosages. Without safener addition, acetochlor had a permanent inhibiting effect on plant root expansion. The safener AD-67 was capable of providing protective effect against herbicide application. High correlations between root electrical impedance or capacitance and the root dry mass or surface area under our labo- ratory conditions were confirmed by plant harvest method. Root electrical impedance and capacitance measurements proved to be valid for monitoring the effect of the herbicide influencing root development and for distinguishing plant groups subjected to different stress conditions.
słowa kluczowe acetochlor, electrical capacitance, electrical impedance, maize, root growth