Two experiments were carried out to study the correction effect of the electrical
conductivity value of the imbibition solution (S cm-1 g -1) as affected by the conductivity of the
water used in the test and the effects seed number and volume of water on the electric conductivity
of the imbibition solution, to improve the methodology for this test in the evaluation of pearl
millet seed vigor. Three seed lots were used, lot 1 represented by cv. Comum and the lots 2 and 3
by cv. BN2. In experiment 1 the electrical conductivities of 10, 20, 30, 40, 50, 60, 70, 80, 90 and
100 seeds of lot 1 were evaluated and placed in 100 ml distilled water. In experiment 2 the
combinations of 25, 50 and 100 seeds and 50, 75 and 100 ml of water were studied for the three
lots. The conductivity tests were carried out at 25 Cº, with 24h imbibition. The statistical model
was the complete randomized block, with four replications for all the treatments. The conductivity
of the water used in the test influenced the calculated value of the electrical conductivity of the
imbibition solution for pearl millet seeds, when the value of the conductivity of the solution is low.
The best combination for the electrical conductivity test for pearl millet seeds was 100 seeds and
100 ml of water, because it identified best the differences among the lots.