Effect of Management of Sulfonylurea Resistant Stellaria media on Barley Yield
Table 3
Reduction in common chickweed population density, coverage of common chickweed, and treatment efficiency against common chickweed evaluated after herbicide treatments in a field experiment in 2012.
Applied treatment
Density reduction, %
Treatment efficiency, %
Coverage, %
Biomass, g/m2
Active ingredient
g/ha
28 DAS
41 DAS
Control
0
4
+22
0
99
61.37
Bromoxynil : ioxynil
100 : 100
42
38
54
67
13.02
Bromoxynil : ioxynil
150 : 150
49
44
76
41
5.34
Bromoxynil : ioxynil
200 : 200
65
64
82
42
3.20
Dichlorprop-P : MCPA : mecoprop-P
310 : 160 : 130
83
94
97
5
0.25
Dichlorprop-P : MCPA : mecoprop-P
465 : 240 : 195
86
98
98
4
0.17
Dichlorprop-P : MCPA : mecoprop-P
620 : 320 : 260
89
97
99
2
1.82
Florasulam
2.5
54
84
97
5
0.46
Florasulam
3.75
62
89
98
4
0.33
Florasulam
5
68
91
98
3
0.03
Fluroxypyr
54
63
75
89
30
6.03
Fluroxypyr
108
82
95
98
4
0.31
Fluroxypyr
162
86
100
99
2
0.02
MCPA : clopyralid : fluroxypyr
400 : 20 : 80
84
97
97
4
0.16
Tribenuron-methyl
10
28
20
47
69
20.01
S.E.M.
5.9***
6.0***
6.9***
8.7***
3.847***
***Statistically significant at . Data shown are combined means of early and late herbicide treatments (), except for reduction data means (), since there were no significant differences between timings of treatment.
