The physiological and sanitary quality in soybean seeds stored at temperatures of 18 e 22°C,
for eight months were assessed in this study. A decrease in Phomopsis sojae presence was detected along
storage time at both temperatures and there was no significant differences among the temperatures. With the
loss of the fungus viability, the seed germination increased in the standard germination test. In sand and soil
tests, emergence was similar throughout the storage period regardless of the fungus percentage. Removal of
the seed coat considerably reduced Phomopsis infection, indicating a predominance of fungus presence in
the superficial seed layers. Superficial aseptic, on the other hand, did not produce satisfactory results.
Fungicide treatments of seeds after the eight months storage period practically eliminated the Phomopsis
sojae influence, with a large increase in the seed germination, wich was similar to the emergence rates in
soil and sand with untreated seeds tests. The lot used, even with the decrease in Phomopsis sojae, did not
reach the minimum 80% germination standard. The low seeds viability was due to other damages, as detected
by the tetrazolium test.