Agriculture Reference
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TABLE 15.1 Indices of pear average-taxon regeneration coefficient depending on the notching
terms in 2007-2010
Regeneration coefficient (urc*)
_
Notching dates
2007
2008
2009
2010
X
21-23.03
1.96
1.55
1.55
1.32
1.60
01-03.04
2.45
2.53
2.49
1.69
2.29
08-14.04
3.03
3.02
2.59
2.20
2.71
19-22.04
2.52
2.54
2.79
2.67
2.63
02-04.05
2.46
3.16
2.96
3.86
3.11
12-15.05
4.67
4.63
4.49
4.32
4.53
21-23.05
5.60
5.39
5.60
4.89
5.37
01-05.06
5.33
5.03
5.36
6.67
5.60
09-14.06
4.17
4.26
4.64
7.10
5.04
21-22.06
5.58
5.73
5.69
9.42
6.61
01-04.07
4.27
4.64
4.35
12.01
6.32
08-10.07
3.96
4.36
3.84
12.79
6.24
15-20.07
4.86
4.38
4.35
8.26
5.46
25-29.07
3.93
4.35
4.25
8.22
5.19
06-09.08
2.16
2.72
2.89
10.29
4.52
16-19.08
2.04
1.96
2.69
8.72
3.85
25-31.08
1.91
1.60
1.67
2.95
2.03
07-10.09
1.24
1.16
1.17
3.70
1.82
17-22.09
1.02
0.94
1.06
1.29
1.08
26-29.09
0.63
0.69
0.58
0.68
0.65
08-14.10
0.09
0.10
0.16
0.85
0.30
_
X
3.04
3.08
3.10
5.42
3.66
S 2
1.67
1.68
1.67
3.81
-
V %
54.87
54.67
53.81
70.34
-
Note: * X mean; S 2 —variance; V % —coefficient of variation
In the fi rst decade of May, 2007, average regeneration coeffi cient, as compared
with the notchings made in the third decade of April, decreased by 0.06 urc, and in
2008-2010 increased by 0.17-1.19 urc, the smallest difference being in 2009 and the
largest difference in 2010. During the second-third decades of May, the indices of
regeneration coeffi cient continued to intensively increase in all years of investiga-
 
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