Pshychenko O. Sowing and productive qualities of sunflower seeds depending on his preparation in the conditions of north-eastern Forest-steppe of Ukraine

Object: peculiarities of forming of sunflower seeds under influence of bacterial fertilizers and microwave field. Purpose: to define influencing of presowing treatment of sunflower seeds with bacterial fertilizers and microwave field on sowing and productive properties of seeds and realization of seeds potential of plants in the seeds production stands. Methods: fields (accounts, observation) - for determination of agronomical, morphometric indexes, phenological data of the material attracted in the experiment; laboratory (technological) - for determination of varieties seeds germination; statistical - for establishment of correlations between expression of characters, determination of importance of difference between the treated variants and control. Results: the positive influencing of seeds treatment with bacterial fertilizers and microwave field on the all characteristics of sowing qualities of sunflower seeds of Chas and Onyx varieties was established. It was revealed the highest values of indexes which characterize development of plants: the height of sunflower plants, amount of leaves, area of leaves surface in the phase of flowering increased and more active dynamics of assimilatory organs forming took place. It was set that presowing treatment by the microwave field and bacterial fertilizers positively influences on development of generative sphere of sunflower plants: there was the increase of diameter of head and its mass, reproductive effort; the plants form reproductive organs which provide the high level of the real seeds productivity. It was established that maximal realization of seeds individual potential of sunflower plants, increase of output of standards seeds, the mass of 1000 seeds, productivity provided by presowing treatment with albobacterin, polymyxobacterin and microwave field with a exposure of 30 seconds comparatively with the control. After-treatment influence of presowing seeds preparation with bacterial fertilizers and microwave field revealed in the maintainance of high sowing qualities and productive properties of seeds in a next generation. Novelty: for the first time in the conditions of north-eastern Forest-steppe of Ukraine the positive influence of bacterial fertilizers and microwave treatment of seeds was proved, that it was revealed in the increasing of sowing qualities, capacity of maternal plants of the seeds production stands for realization of reproduction potential and output of standards seeds of high quality. Sphere of introduction: seeds productive enterprises.