The value of the grain seeds is in the ability to germinate and ensure high yields. The main technological process for preserving the properties of seeds is drying. The proper carrying out and providing of rational modes of drying is a necessary condition to preserve the high ability to germinate. For the object of drying we have taken wheat seeds to determine the rational regimes. The research of the drying process kinetics is carried out on a convective drying stand in the following modes: coolant temperature in the drying chamber t = 50-80 degrees C, velocity V = 0.5-1.5 m/s. The highest intensity of drying occurs from an increase in the temperature of the coolant from 50 to 80 degrees C in 3 times, but the main indicator is wheat maximum permissible temperature, which, at the coolant temperature of 50 degrees C, is 48.6 degrees C. The biochemical indicators of wheat seeds were determined in the laboratory of the Institute of Technical Thermophysics according to the method on the 7th day of germination. The results of the researches showed that the best results of wheat germination were at 50 degrees C at the level of 96%. Coolant temperature of 80 degrees C has the most negative influence on wheat germination as the seeds lose their properties. The analysis of the three-factors of influence, such as temperature and speed of coolant, as well as wheat initial humidity, on seed drying time and germination is done. The obtained regression equations and obtained response surfaces of seed drying time and germination enable us to evaluate the process in terms of drying parameters' influence.
