Seed viability analyzer

Details Seed viability analyzer Seed viability analyzer

1978-11-24

1980-10-28

Tokar, Michael J.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Erosion

47 58, G01N 2700

Patent

active

042309832

ABSTRACT:
A method and apparatus for automatically analyzing seed characteristics. The seeds are placed one each in associated cells in a tray and the cells are filled with a deionized liquid such as distilled water. After a predetermined period of time, the conductivity of the resultant exudates are measured to provide a visual indication of the seed characteristics such as viability, vigor, and physical damage. In the apparatus, a probe head having a plurality of electrode pairs is placed on the tray so that each electrode pair is immersed in the exudate in each of the cells. An electrical potential is established between each electrode pair and the current flowing therebetween is sequentially scanned to automatically provide a visual indication of the exudate conductivity for each of the seeds in the tray cells. Preferably, the electrodes are first brought to the same potential to stabilize the exudate before establishing the potential difference across the electrodes which creates the current flow.

REFERENCES:
patent: 3852914 (1974-12-01), Levengood

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