THE QUALITY OF SUGAR BEET SEEDS AND THE WAYS OF ITS INCREASE - Ecological Consequences of Increasing Crop Productivity - page 186

The sorting of this seed according to its specifi c mass ensures obtaining calibrated
seed with 99 percent germination, which is quite suitable for the preparation of high-
quality pelleted seed. The similar results were obtained after the polishing and sorting
by specifi c mass on the seed of technological fraction diameter more than 3.75 mm.
Along with the mechanical method of the seed germination intensity increase, we
studied the possibility to improve it through the stimulation of the initial phases of
passage of germination with its subsequent suspension.
To determine the optimum regime of stimulation, the research was carried out with
the seed of two domestic triploid hybrids. As the results prove the hybrids Oleksan-
driia and Umans'kyi ChS 97 reacted to the seed to the stimulation in different ways.
Under the stimulating initial phases passage of germination of hybrid Oleksandriia,
the optimal term at which the number of sprouted incrusted seeds through the 48 h
after seeding was 22 percent higher, and its germination was 6 percent higher than on
the control, which is the stimulation by the fourth regime. At the stimulation of the
initial phases passage of germination of hybrid Umans'kyi ChS 97 under all regimes,
we did not obtain a positive result on seed germination. The intensity of germination
in 48 h after sowing increased to 6-44 percent compared with the control. The essence
revealed in the chapter as the materials for patenting are being prepared and only the
results of laboratory tests are shown.
It is established that pelleting shell together with the protective preparations pro-
vides the mechanical barrier for seed germination, especially in the early stages—48
h after sowing. Under these conditions, the stimulation of seeds before its pellet-
ing affects the intensity of pelleted seeds germination positively. In all the variants
with stimulation, except the variant where the stimulation was performed under the
fi rst regime, the number of germinated seeds of both hybrids was higher than in the
control.
The analysis of factors infl uencing the number of sprouted encrusted pelleted
seeds in 48 h has showed that the share of factor “stimulation” impact is signifi cantly
increased, compared with the impact on the calibrating seed and made 30 percent, a
hybrid factor—60 percent, other factors—10 percent (Figure 18.4).
The verifi cation of the developed method of seed germination stimulation,
which provides the awakening of germ in the early stages with its subsequent
suspension in a production environment has confi rmed the results of laboratory
research on the effi ciency of this method. The effectiveness of stimulation was
checked in 12 parties of calibrated seed of diploid and triploid hybrids prepared
for pelleting, which lost partially the energy of germination and germination in the
process of storage.