Igea S.r.l.

Zero Weed Ab

Tetra Laval Holdings & Finance S.a.

Idogen Ab

Bertil Persson

Gert Ekberg

Manoochehr Keikhaee

Lluis Mir

Damijan Miklavcic

P&auml;r Henriksson

Tomas Nybrant

Berit Mattsson

Bengt Widegren

Leif Salford

Eberhard Neumann

Monica Jartelius

Hans Hellström

Hans Olov Sjögren

Henrik Grane

Tom Lennartsson

Mats MÅNSON

Carl-Erik Månsson

An electroporation device having a signal generating circuit () connectable at the output to electrodes () fittable to a substrate () having cells. The electrodes () produce an electric field which induces permeabilization of the cell membranes to facilitate introduction of substances into the cells. The amplitude of the signal () applied to the electrodes is closed-loop controlled on the basis of the impedance (Z(&#x3c9;)) of the substrate, so as to regulate the amplitude of the signal following a reduction in impedance caused by permeabilization of the cell membranes.

Electroporation device and method, delivering a modulated signal under continuous control of cell electropermeabilization

Weed seeds are controlled by high voltage pulses with short duration which electropermeabilize the cell membranes of weed seeds in the ground. The device is selective and damages only germinating weed seeds and plants early in their life cycle. The required amount of energy is small; with rectangular pulses the optimal field strength is between 100-300 kV/m with a duration of (10-100 microseconds). A transformer placed on a sowing machine transforms electrical energy to high voltage pulses. The energy may be taken from the pulling tractor via a transmission or from an integrated power source. The high voltage pulses are applied to electrically conducting via applicators to two or more fixedly spaced plates to the soil around newly sown seeds.

Method and device for weed control

Growing community of inventors

Lund, Sweden

Bertil Persson