Said M. Biological peculiarities of yield formation of spring soft and hard wheat in the eastern part of Ukrainian forest-steppe zone.

When conducting field experiments the biological peculiarities of yield formation of grain gualiti of spring soft and hard wheat of two perspective varieties accordingly Kharkovskaya 28 and Kharcovskaya 39 were studied due to the generally acctpted methods depending on cjmhlex influenct of weather conditions and seed treating by the biological preparations thet have fungicide and growth activating effect.In the experiment s the seeds were treated by solutions of BEM-1-U preparation at a rate of taking 1 leter of this + 11 leters of water per every tonne of the seeds; Humisol -15 liter of this +11 liters of water is perr every tonne of the seeds; Humisol-15 liters per tonne and Mars preparation as a film maker and a growth regulator -200 milliliter + 12 iiters of water per 1 tonne. Besides the mixture of solutions of these preparations was used at ratio 1;1 -Balkal + Mars and Humisol + Mars.The results of our experiments showed that the growth, development and yield formation of the hard and soft wheat are njt the same.Treating the seeds by the solution of these preparations is economically and bioenergeticflly effective.