The influence of the size of sowing seeds on the size of seeds in progeny of confectionary sunflower varieties

In field experiments with confectionary sunflower varieties SPK and Oreshek the influence of the size of sowing seeds on thousand-seed weight in harvest was studied. The seeds divided into groups by means of sieves system were used for sowing. Thousand-seed weight of sowing material varied from 83 to 140 g. It was determined that the size of seed material does not influence the absolute weight of seeds in the yield, crop productivity and the yield of standard seeds, regardless of its modification variability cause.