Response of Dry Bean to Sulfentrazone Plus Imazethapyr
Table 1
Significance of main effects and interactions for percent visual injury, dry weight, height, seed moisture content, and yield of dry bean treated with PRE applications of sulfentrazone, imazethapyr, or sulfentrazone plus imazethapyr. Means followed by the same letter within a column are not significantly different according to Fisher’s Protected LSD at . Means for a main effect were separated only if there was no significant interaction involving that main effecta.
Main effectsb
Dry bean injury
Dry weight (g)
Height (cm)
Moisture (%)
Yield (T/ha)
1 WAE
2 WAEc (%)
4 WAE
Type of dry bean
NS
*
*
NS
**
NS
**
Black
1
4
3
71
59
16.3
3.5a
Cranberry
1
4
2
72
51
18.0
1.7b
Kidney
1
2
1
73
53
18.7
1.9b
White
1
7
5
61
54
17.6
3.5a
SE
0
0
0
2
1
0.1
0.1
Herbicide treatment (rate in g ai/ha)
NS
**
**
NS
**
NS
NS
Untreated
0
0
0
77
56
17.5
2.8
Sulfentrazone (105)
0
2
1
72
55
17.9
2.7
Sulfentrazone (140)
1
3
2
72
56
17.7
2.6
Sulfentrazone (280)
2
11
8
63
53
18.0
2.6
Imazethapyr (37.5)
0
1
1
66
55
17.3
2.7
Sulfentrazone + imazethapyr (105 + 37.5)
1
3
2
70
54
17.6
2.7
Sulfentrazone + imazethapyr (140 + 37.5)
1
4
3
70
54
17.4
2.6
Sulfentrazone + imazethapyr (280 + 3 7.5)
2
11
7
64
51
17.6
2.6
SE
0
0
0
2
1
0.1
0.1
Interaction
T × H
NS
*
**
NS
*
NS
NS
Contrasts
Sulfentrazone versus sulfentrazone + imazethapyr
4 versus 4
7 versus 7
6 versus 6
69 versus 68
54 versus 53
18.1 versus 17.8*
2.6 versus 2.6
Imazethapyr versus sulfentrazone + imazethapyr
1 versus 4*
2 versus 7**
1 versus 6*
66 versus 68
55 versus 53
17.6 versus 17.8
2.7 versus 2.6
Abbreviations: WAE: week after crop emergence; H: herbicide treatment; NS: not significant at level; PRE: preemergence; T: type of dry bean.
bSignificance at and levels denoted by * and **, respectively.
cRidgetown 2010 values not included (all values zero, could not be combined with other environments).
