Chemistry Reference
In-Depth Information
TABLE 2
Germination energy of seeds of winter grain crops and millet species under different
ways of treatments of cereal inflorescences by PABA.
Variant of experiment
Winter wheat
Winter barley
Japanese
millet
Panic
Italian
millet
%
+/%
%
+/%
%
+/%
%
+/%
%
+/%
0. Control I without treat-
ment: soaking in water for
3-4 hr
54
0
68
0
53
0
60
0
54
0
1. Control II: soaking in
PABA (0.1-0.2%), dis-
solved in hot water 2-2.5 hr
65
11/17
73
5/7
62
9/15
73
12/16
63
8/13
2. Soaking in PABA (0.1%),
dissolved in an ac. a. 2-2.5
hr
72
55/76
81
13/16
75
22/29
81
22/31
73
19/26
3. Soaking in PABA (0.2%),
dissolved in an ac. a. 2-2.5
hr
80
27/34
84
16/19
79
26/33
87
26/30
76
22/29
4. Soaking in PABA (0.2%),
dissolved in an ac. a. 3-4 hr
85
32/38
89
21/24
83
30/36
89
29/33
79
25/32
5. Soaking in PABA (0.2%),
dissolved in an ac. a. 5-6 hr
78
25/32
80
11/14
78
26/33
84
24/29
75
21/28
LSD
05
3.4
2.1
2.6
2.9
2.5
Winter hardness of winter cereals (Table 3) - wheat and barley in all variants with
treatment of PABA dissolved in an acetic acid (variants 2-5) and in control of II (dis-
solution is in hot water) was higher than in control of 1 (without PABA). As well as
other experiments indexes at dissolution of PABA in hot water in control II were be-
low, than in other variants (3-5).
TABLE 3
Winter hardiness (% of plants overwintered) of winter cereals under different ways
of treatments of ears by PABA.
Variant of experiment
Winter wheat
Winter barley
%
+/%
%
+/%
0. Control I without treatment: soaking in water for 3-4 hr
78
0
84
0
1. Control II: soaking in PABA (0.1-0.2%), dissolved in hot water
2-2.5 hr
82
4/4.8
88
4/4.8
2. Soaking in PABA (0.1%), dissolved in an ac. a. 2-2.5 hr
86
8/9.3
95
11/22.6
3. Soaking in PABA (0.2%), dissolved in an ac. a. 2-2.5 hr
90
12/13.3
97
13/13.4
4. Soaking in PABA (0.2%), dissolved in an ac. a. 3-4 hr
98
20/20.4
98
14/14.5
5. Soaking in PABA (0.2%), dissolved in an ac. a. 5-6 hr
88
10/11.4
92
8/8.7
LSD
05
3.1
0.8
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