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| International Agrophysics |
| publisher: | Institute of Agrophysics
Polish Academy of Sciences
Lublin, Poland |
| ISSN: |
0236-8722 |
vol. 26, nr. 3 (2012)
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Monitoring of herbicide effect in maize based on electrical measurements
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I. Cseresnyés1, G. Fekete2, K.R. Végh1, A. Székács2, M. Mörtl2, K. Rajkai1
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1 Research Institute for Soil Science and Agricultural Chemistry |
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2 Plant Protection Institute Hungarian Academy of Sciences, H-1022 Budapest, Herman O. út 15, Hungary |
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vol. 26 (2012), nr. 3,
pp. 243-247
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abstract
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.
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keywords
acetochlor, electrical capacitance, electrical impedance, maize, root growth
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