Agriculture Reference
In-Depth Information
TABLE 18.4
The intensity of seed germination depending on the degree of polishing (average
of 2011-2012)
Germinated seeds in hours after sowing
(%)
Pericarp
removed
(%)
Variant
96% energy
of germina-
tion
48
72
120
Germination
Control, the original
sample
0
13
60
76
77
78
After 1 polishing
26.7
32
80
82
82
83
After 2 polishing
30.1
56
86
87
87
88
After 3 polishing
31.7
52
87
88
88
89
LSD
05
2.5
5.6
2.8
3.4
3.2
3.3
The fi nal stage of seed preparation for pelleting is seeds polishing by the techno-
logical fractions and its sorting by specifi c mass. It was established that under seed
polishing by the technological fraction with diameter of less than 3.75 mm, 5.3 percent
of pericarp mass is removed and the intensity of germination in 72 h after seeding
increases by 17 percent compared with the control (Table 18.5).
TABLE 18.5
The intensity of calibrated seeds germination depending on the degree of
polishing (average of 2011-2012)
Germinated seeds in hours after sowing (%)
Pericarp
removed
(%)
Variant
96% energy of
germination
Germina-
tion
48
72
120
Control, the original
sample
0
13
60
76
77
78
Fraction of seeds < 3.75 mm in diameter
Before polishing
0
24
71
74
74
74
After polishing
5.3
50
77
78
79
79
After the pneumatic table
0
34
98
99
99
99
Fraction of seeds > 3.75 mm in diameter
Before polishing
0
27
85
88
89
89
After polishing
8.8
57
91
91
91
92
After the pneumatic table
0
59
98
98
98
99
LSD
05
3.3
2.4
2.7
2.5
2.5
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