SUMMARY

The ivestigations have ben carried out during the 1999-2000. period. The aim of the reseach was to astablish the optimal sowing density and terms of sowing of some hybrids belongig to different maturity groups.

As the two year results show the terms of sowing, density of sowing and factors of Year had influenced the investigated parameters by all the hibrids to the significant degree.

          Key words: sowing densyty, sowing term, corn hybrids.