Comparisons of Herbicide Treated and Cultivated Herbicide-Resistant Corn
Table 3
Type III Test of Fixed Effects of Two Methods of Weed Control on LAI of Herbicide Resistant Corn Hybrids Grown at Stoneville, MS for Three Years.
Source
DF
2005
2006
2007
F
F
F
Hybrid
5
.8
.56
.09
.99
.16
.98
Weed control
1
.2
.65
.26
.61
.44
.51
HybridWeed control
5
.86
.52
.25
.93
.56
.73
xsp
1
19.96
.01
1.32
.25
.06
.81
xspxsp
1
63.22
.01
1.06
.31
.27
.61
xspxspxsp
1
87.71
2.93
.09
.23
.63
xspWeed control
1
.32
.57
.31
.58
.56
.45
xspxspWeed control
1
.49
.48
.36
.55
.53
.47
xspxspxspWeed control
1
.64
.42
.46
.50
.51
.48
xspHybrid
5
.9
.48
.09
.99
.16
.98
xspxspHybrid
5
.89
.49
.09
.99
.17
.97
xspxspxspHybrid
5
.84
.52
.12
.99
.19
.96
Estimate
Estimate
Estimate
Replication
.012
.02
.03
σReplicationHybridWeed control
.018
.01
.09
σHybridWeed controlsp
.027
.12
.23
σResidual
.16
.29
.32
Weed control methods consisted of either cultivation and hand-hoeing or applications of labeled quantities of glyphosate, glufosinate ammonium, or atrazine. Hybrids were DKC 60-17RR, DKC 60-19RR, G8118RR, 31G98, 34A55LL, G8287RR (2005 and 2006), and G8270RR (2007).
