This work aims to evaluate the effect of air temperature and relative air humidity of the drying air
concerning the physiologic quality of seeds canola (Brassica napus L. var. oleifera Metzg.) The seeds which had
a initial humidity level of approximately 13% wet basis (wb) , where set to dry on thin layers in order to reach the
final humidity level of about 8% (wb). The Aminco-Air conditioner, in which there are four temperatures (30oC,
40oC, 50oC and 60oC) and four relative air humidity (30%, 40%, 50% and 60%), was used for the drying tests,
with an air flow of 10m3.min-1.m-2. After the seeds had been dried, they were subjected to a physiological quality
analysis. In order to analyse the physiological quality of seeds, there was a germination test and the first counting of
the test. was immediately taken as a strength signal and the procedure was repeated 120 days after the drying had
be done. The data analysis which was obtained, allowed one to conclude who the effect of air temperature and of
relative humidity of the drying air on the strength and on the canola seed germination, combining 30oC as temperature
with 60% of relative humidity of the drying air, was the one that developed the best germination rate and strength
rate.