Corn Response Across Plant Densities and Row Configurations for Different Moisture Environments
Table 5
values from a general linear mixed model analysis for specific treatments over five site-years during the 2011 to 2014 growing seasons across northern and central Alabama.
Effect
df
Plant height
Stover yielda
Yield
Test weight
Grain N
Aflatoxin
Environment (ME)b
9
<0.0001 c
0.8571
<0.0001
0.6502
<0.0001
<0.0001
Irrigation (I)
1
0.0179
0.0005
<0.0001
0.8858
0.0001
0.0212
ME × I
9
0.0330
0.0083
0.0422
0.0159
0.0083
0.0498
Row pattern (RP)
1
0.7984
0.2163
0.3999
0.1086
0.2771
0.4824
ME × RP
9
0.0126
0.4597
0.3993
0.9476
0.8240
0.3996
I × RP
1
0.4926
0.6485
0.7227
0.6243
0.5054
0.7913
ME × I × RP
9
0.7957
0.9267
0.7841
0.3440
0.7331
0.5400
Population (P)
2
0.8039
0.8286
0.5571
0.8000
0.0416
0.1225
P × ME
18
0.2453
0.9691
0.3463
0.4508
0.5197
0.8758
P × I
2
0.5393
0.8704
0.8412
0.8834
0.6799
0.8561
P × ME × I
18
0.9848
0.8577
0.9470
0.9273
0.3391
0.8885
P × RP
2
0.7517
0.9884
0.9546
0.8459
0.6785
0.9104
P × ME × RP
18
0.6544
0.8433
0.8672
0.9495
0.7538
0.7111
P × I × RP
2
0.7240
0.8480
0.6709
0.4135
0.5950
0.9686
ME × I × RP × P
18
0.9677
0.9462
0.8353
0.9203
0.9971
0.7074
aOne site-year (E.V. Smith in 2012) was excluded from the analysis because dry weights for samples were not obtained. bEnvironment represents moisture environments where <480 cm rainfall at two site-years (EVS11 and TVS12) were “low moisture” and other site-years were “moderate moisture.” cBold values indicate significant differences ().
