Boyko I. Sowing qualities and productive properties of seeds depending on the sizes of the biological forms of sugar beet.

Analysis of prepared seeds showed that seed content of diameter 3.0-3.5 mm by both direct method and indirect method of growing both biological forms of sugar beet was almost the same and ranged from 10,2 % till 15 %, usage of it would provide growth of the yield of good quality seed for pelleting. Emergence of this seed fraction was 74 %, and monogerms - 96 %. The main technological indicator is purity that shows potentially possible emergence of seeds which can be obtained in the process of presowing preparing on the seed plant, and it was 96 %. As the result of research was found relation of seed quality of its sizes: between seed sizes and its energy of germination and emergence - real close correlated dependence, coefficient of correlation was 0,92-0,93; between seed sizes and its monogerms - close reverse correlated dependence, coefficient of correlation was 0,93-0,96. Using experiment was developed that by using of modern pelleting composition reasonable to use for pelleting seed of small technological fraction of diameter 3,25-3,5 mm, that will increase the release of the conditioned seed up to 9,3 %. Energy of germination and emergence of pelleted seeds, preparing with using of fraction of diameter 3,25-3,5 mm did not reduce in accordance with control - non pelleted seeds during its sprouting both under the favorable and unfavorable conditions. Crop yield and technological qualities of the root crops both biological forms of sugar beet did not decrease compared to sowing of pelleted seeds, prepared with using of bigger fraction.