Agriculture Reference
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(control) to 87-90 percent (in variants with minting). The highest index of germination
is observed in the variant, where the minting was applied on 50 percent of plants and
100 percent of plants of CMS component (Table 18.2).
TABLE 18.2 The yield and quality of O-type basic seed depending on the directional regulation
of the process of flowering depending on seed plant minting (average of 2008-2010)
Yield of
seed
(t/hа)
The degree
of tying
(%)
Energy of
germination
(%)
Germi-
nation
(%)
Weight of
1,000 pc
(g)
Variant
Without
mint-
1.48
88.8
78
82
12.2
ing—control
The minting of
50% of pollinator
1.65
93.4
85
87
13.3
The minting of
50% of pollinator
and 100% of CMS
component
1.68
93.7
87
90
13.5
LSD 05
0.04
1.7
2.6
3.1
0.4
The increase of seed germination is caused by better pollination of O-type plants,
as evidenced by the degree of seed tying, which increased by 4.6-4.9 percent com-
pared with the control. The minting positively impacts on the mass of 1,000 seeds
of CMS component and O-type. The signifi cant increase of the mass of 1,000 fruits
in variants with directional regulation of the process of fl owering is caused by better
redistribution of nutrients.
The restriction of the central stem growth results in the more active nutrients en-
tering the side stems, where the basic mass of the seeds is formed, improving their
growth and development and, ultimately, decreasing the number of fruits of the diam-
eter less than 3.50 mm, which does not relate to the seeds and is lost in the post-harvest
treatment of heap. It is found out that under regulation of the process of fl owering the
number of fruit with the 3.00-3.50 mm diameter fraction decreased by 1.7-2.0 times
of CMS component and by 1.9-2.2 times of O-type and the yield of sown fraction of
seeds increased accordingly—by 8-10.4 and 9.7-11 percent (Table 18.3). Thus, with-
out minting the number of seeds 3.00-3.50 mm fraction of CMS component was 24.3
percent, while both under minting only of 50 percent of the plants, it was 14.3 percent,
and under minting of 50 percent of plants of O-type and 100 percent of plants of CMS
component was 12.3 percent.
 
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