Grower-Cooperator -- Chris Ausborn Farm, Aberdeen
| Soil type | Houston clay loam |
| Soil pH | 7.3 |
| Soil fertility | P--M, K--M |
| Fertilizer added | Preplant -- 0-26-26@300 lb/A + 34-0-0 @ 100 lb/A |
| Sidedress -- N @ 170 lb/A | |
| Herbicide application | Postemergence
-- Atrazine @ 3 pt/A, Accent @ .5 oz/A |
| Planting date | March 30, 1998 |
| Harvest date | August 28, 1998 |
Crop Summary
Rainfall received during the last week of May relieved stress during pollination. This contributed to fair yields despite severe drought stress otherwise.
Rainfall Summary
| March | 7.85 inches |
| April | 3.05 inches |
| May | 3.80 inches |
| June | 1.40 inches |
| July | 13.40 inches |
| August | 4.05 inches |
| Total | 33.55 inches |
| Table 4. Results from 23 early-maturing corn hybrids grown without irrigation on a Houston clay loam soil in Aberdeen, Monroe County, 1998.1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Hybrid number |
Brand name |
1998 yield |
2-year average |
3-year average |
Root lodging |
Stalk lodging |
Ear height |
Moisture content |
Harvested stand (x 1000) |
| bu/a | bu/a | bu/a | % | % | in | % | |||
33G26 |
Pioneer |
120.9 |
-- |
-- |
0 |
0 |
43 |
16.0 |
23 |
32K61 |
Pioneer |
113.5 |
109.1 |
-- |
0 |
0 |
39 |
20.2 |
24 |
DG5510A |
Funk's |
113.1 |
110.9 |
84.5 |
0 |
0 |
37 |
18.5 |
25 |
TV 2543 |
Terral |
104.4 |
-- |
-- |
0 |
0 |
38 |
19.4 |
26 |
S660 |
Stewart |
101.0 |
-- |
-- |
0 |
0 |
37 |
16.1 |
22 |
TR1088 |
Terra |
99.9 |
-- |
-- |
0 |
0 |
34 |
17.6 |
28 |
S555 |
Stewart |
98.3 |
-- |
-- |
0 |
0 |
34 |
14.9 |
26 |
FFR726 |
Elite |
93.5 |
-- |
-- |
0 |
0 |
36 |
13.9 |
22 |
TR1154 |
Terra |
92.5 |
87.7 |
76.8 |
0 |
0 |
44 |
15.7 |
26 |
TV2100 |
Terral |
92.4 |
91.7 |
-- |
0 |
0 |
35 |
15.8 |
24 |
S599 |
Stewart |
84.3 |
-- |
-- |
0 |
0 |
35 |
15.3 |
22 |
S605 |
Stewart |
83.1 |
-- |
-- |
0 |
10 |
32 |
15.9 |
20 |
3394 |
Pioneer |
82.5 |
97.1 |
76.3 |
0 |
0 |
39 |
15.3 |
25 |
TV2140 |
Terral |
81.9 |
-- |
-- |
0 |
0 |
41 |
16.0 |
24 |
33951R | Pioneer |
80.1 |
-- |
-- |
0 |
0 |
40 |
15.0 |
26 |
TVX20770 |
Terral |
78.9 |
90.7 |
-- |
0 |
0 |
37 |
16.2 |
25 |
S589 |
Stewart |
78.1 |
-- |
-- |
0 |
0 |
29 |
15.6 |
24 |
33R87 |
Pioneer |
77.3 |
-- |
-- |
0 |
5 |
39 |
15.5 |
20 |
TR1087 |
Terra |
76.9 |
94.1 |
-- |
0 |
6 |
33 |
13.8 |
26 |
TV2090 |
Terral |
75.9 |
87.9 |
-- |
0 |
4 |
33 |
14.9 |
26 |
TVX21370 |
Terral |
74.3 |
-- |
-- |
0 |
0 |
40 |
16.5 |
21 |
8513IT |
Garst |
69.6 |
-- |
-- |
0 |
0 |
35 |
15.1 |
24 |
TR1157 |
Terra |
63.9 |
80.6 |
70.6 |
0 |
0 |
39 |
17.5 |
26 |
Overall mean |
90.1 |
96.7 |
79.0 |
||||||
LSD (.10) |
18.9 |
10.8 |
9.2 |
||||||
Error degrees of freedom |
40 |
44 |
27 |
||||||
CV (%) |
14.2 |
12.9 |
17.2 |
||||||
R2 (%) |
81 |
71 |
65 |
||||||
| 1Planted March 30; harvested August 28. | |||||||||
| Table 5. Results from late-maturing corn hybrids grown without irrigation on a Houston clay loam soil in Aberdeen, Monroe County, 1998.1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Hybrid number |
Brand name |
1998 yield |
2-year average |
3-year average |
Root lodging |
Stalk lodging |
Ear height |
Moisture content |
Harvested stand (x 1000) |
| bu/a | bu/a | bu/a | % | % | in | % | |||
3167 |
Pioneer |
123.0 |
106.7 |
96.9 |
3 |
0 |
40 |
22.0 |
26 |
3223 |
Pioneer |
117.1 |
98.5 |
88.9 |
0 |
0 |
46 |
19.0 |
25 |
dk5570 |
Douglas King |
114.1 |
-- |
-- |
12 |
0 |
42 |
20.4 |
24 |
dk5445 |
Douglas King |
109.9 |
-- |
-- |
3 |
0 |
43 |
21.7 |
25 |
DK687 |
DeKalb |
107.9 |
103.1 |
-- |
3 |
3 |
44 |
18.8 |
26 |
HS 9843 |
Hyperformer |
106.0 |
101.1 |
86.6 |
0 |
0 |
41 |
18.9 |
25 |
AP9939 |
AgriPro |
103.5 |
-- |
-- |
0 |
0 |
36 |
20.7 |
26 |
AP9909 |
AgriPro |
103.1 |
86.5 |
-- |
3 |
6 |
47 |
18.1 |
24 |
3163 |
Pioneer |
101.3 |
97.2 |
85.3 |
0 |
0 |
42 |
18.8 |
22 |
8220 |
Garst |
100.9 |
-- |
-- |
0 |
3 |
35 |
19.2 |
20 |
AP9707 |
AgriPro |
99.0 |
-- |
-- |
0 |
0 |
34 |
17.1 |
26 |
DK683 |
DeKalb |
98.1 |
93.1 |
82.4 |
0 |
0 |
45 |
18.2 |
26 |
TR1167 |
Terra |
97.9 |
90.6 |
83.1 |
0 |
0 |
42 |
19.0 |
26 |
S795 |
Stewart |
93.9 |
-- |
-- |
4 |
0 |
37 |
18.0 |
24 |
TR1185 |
Terra |
90.8 |
83.4 |
71.3 |
0 |
3 |
45 |
16.5 |
25 |
AP9828 |
AgriPro |
90.0 |
-- |
-- |
0 |
0 |
41 |
17.3 |
30 |
AP9829IMI |
AgriPro |
88.3 |
-- |
-- |
0 |
0 |
43 |
17.4 |
26 |
8222IT |
Garst |
87.9 |
-- |
-- |
0 |
0 |
42 |
19.8 |
23 |
FFR943 |
Elite |
87.5 |
-- |
-- |
0 |
0 |
37 |
19.9 |
21 |
8460 |
Mycogen |
87.3 |
86.7 |
77.8 |
4 |
7 |
41 |
16.8 |
26 |
TV 2930 |
Terral |
86.1 |
-- |
-- |
0 |
8 |
44 |
17.5 |
26 |
DK706 |
DeKalb |
86.1 |
76.6 |
71.7 |
0 |
0 |
45 |
18.8 |
26 |
4653 |
Funk's |
83.1 |
-- |
-- |
4 |
4 |
38 |
17.5 |
29 |
E1188 |
Terra |
81.5 |
-- |
-- |
0 |
0 |
40 |
17.1 |
28 |
RX913 |
Asgrow |
80.3 |
-- |
-- |
0 |
10 |
41 |
16.4 |
21 |
Overall mean |
93.9 |
93.0 |
82.7 |
||||||
LSD (.10) |
18.7 |
11.5 |
7.5 |
||||||
Error degrees of freedom |
100 |
80 |
96 |
||||||
CV (%) |
19.0 |
16.6 |
15.0 |
||||||
R2 |
62 |
56 |
75 |
||||||
| 1Planted March 30; harvested August 28. | |||||||||
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