The sowing period influence on the seed quality in the Krasnoyarsk forest-steppe conditions

It is mentioned in the article that the sowing periods of the early-ripe sorts don’t exert significant influence on the seed yield and germination. Late sowing periods are suitable for different in ripeness sorts and cultures to the extent to which they coincide with the favorable environment conditions. The chemical protection agents and fertilizers exert the positive influence on the crop capacity, weight of 1000 grains and germination regardless of the sowing periods.