2001 Dryland Grain Corn Performance Data

New trial aims to identify public varieties capable of yielding 80-100% of hybrids.

We initiated two new dryland corn tests in 2001. David Baltensperger, University of Nebraska plant breeder working out of Scottsbluff, provided us with 10 synthetic corn varieties that were tested at Akron and Julesburg. The objective is to identify public corn varieties capable of yielding 80-100% of hybrids and whose seed could be saved by dryland corn producers and used in subsequent years. These varieties performed admirably against modern corn hybrids. Synthetic varieties will be tested for at least three years.

In addition, the Maximum Economic Yield Club (a group of Colorado dryland farmers organized through the Akron USDA-ARS Experiment Station) sponsored an enhanced dryland corn hybrid trial at the Akron location. Club members, desiring performance results for the hybrids they plant in their own fields, entered a large number of hybrids in the Akron dryland corn performance trial. They plan to maintain the same hybrids in the trial for a minimum of three years. Hybrid seed company entries and MEY Club entries were compared in a single trial.

Jerry Johnson
Extension Crop Production

Table 4: Two-year average dryland corn performance
at Akron, 2000-01.
Hybrid
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
DEKALB DKC48-83
87
13.5
55.2
DEKALB DKC53-32
85
14.0
54.0
Seedex SX5701
82
12.6
54.7
Garst 8756(RR)
81
12.5
53.8
Novartis N43-C4(Bt)
79
13.3
55.1
Garst 8590
71
17.4
56.7
AgriPro 9313
65
13.4
55.2
Average
79
13.8
54.9

Table 5: Dryland synthetic
varieties performance at Akron1 in 2001.
Hybrid
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
HPAL C-8
78
14.6
57.6
HPAL C-7
77
14.5
58.0
HPAL C-10
76
15.5
57.8
HPAL C-1
73
14.2
57.1
HPAL C-9
71
15.6
57.5
HPAL C-5
71
15.2
57.1
HPAL C-4
71
14.7
57.0
HPAL C-2
71
15.1
58.1
HPAL C-6
70
15.2
57.4
HPAL C-3
68
14.8
57.6
Average
73
15.0
57.5
LSD(0.30)
6
 
 
1Trial conducted on the Central Great Plains Research Center; seeded 5/18 and harvested 10/21.

Table 6: Dryland corn performance at
Julesburg1 in 2001.
Hybrid2
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
Seeds 2000 X3132
51
17.0
50.6
Grand Valley GVX2050 S
48
16.7
55.0
Triumph 2370RR
47
16.5
55.1
DEKALB DKC53-32(YG)
47
16.5
53.1
Grand Valley SX1264
45
15.8
56.4
Grand Valley SX1211
44
16.8
54.0
DEKALB DK507
44
16.0
57.1
DEKALB DKC51-88
43
16.0
55.5
Garst 8590(IT/IMI)
43
15.2
55.9
Garst 8686(IT/IMI)
42
15.2
58.0
DEKALB DKC46-26
42
17.2
50.2
Seedex SX5701
41
16.4
54.3
Farmer Check*
39
16.4
52.2
Grand Valley GVX8959
38
16.0
55.6
Kaystar KX-630
37
16.3
54.4
ASGROW RX601(RR/YG)
36
15.6
55.4
AgriPro 9340
35
16.2
54.5
Grand Valley SX1229
33
15.8
55.4
AgriPro 9313
31
16.2
56.0
Garst 8756(RR)
31
16.9
51.4
Grand Valley GVX4651
31
16.5
54.5
Grand Valley GVX7259
28
15.6
55.4
NC+ 3820
23
15.3
59.9
Average
39
16.2
54.8
LSD(0.30)
5
1Trial conducted on the Josh Lechman farm; seeded 5/15 and harvested 10/22.
2Abbreviations used with corn hybrids: Bt = transgenic corn borer protection, IR, IMI, IMT, PT = Imidazolinone Resistant (Pursuit, Resolve, Contour), LL = Liberty Link/Glufosinate herbicide tolerance, RR = Roundup Ready/roundup herbicide tolerance, YG = YieldGard/Cry1Ab corn borer resistance.
*Farmer check was DEKALB 520.

Table 3: Dryland corn performance
at Akron1 in 2001.
Hybrid2
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
DEKALB DKC48-83
111
13.3
55.9
Pioneer brand 3655
99
14.7
56.5
Triumph 9066(RR)
99
13.4
57.8
Seedex SX5701
97
12.2
54.9
DEKALB DK440 (RR/YG)
97
12.2
55.0
DEKALB DK520 (RR/YG)
95
13.2
54.4
Novartis N43-C4
93
12.6
55.3
DEKALB DKC53-32(YG)
92
14.0
54.1
DEKALB DK46-28(RR)
90
13.7
56.7
Pioneer brand 37M81
90
13.3
55.9
DEKALB DK493(RR)
90
12.9
55.7
Novartis N3030(Bt/YG/LL)
90
14.1
57.1
Triumph 2370RR
90
13.9
56.3
Garst 8686(IT/IMI)
88
17.1
58.2
Pioneer brand 35R57
87
13.4
56.2
Pioneer brand 37M34
87
13.6
56.9
Novartis NK Brand 4424
87
14.1
57.1
Novartis N4242
87
13.5
57.8
DEKALB DKC46-26
87
13.0
56.9
Pioneer brand 3752
87
14.2
58.3
Novartis N4242(Bt/YG/LL)
87
13.9
57.8
Pioneer brand 38K06
86
13.5
58.0
Cropland 481(RR)
86
14.9
55.6
Seeds 2000 X3132
85
13.8
57.2
NC+ 2021(RR)
85
12.3
53.5
DEKALB DKC51-88
85
15.3
57.6
Triumph 9907(RR)
85
12.5
54.5
Triumph 1321(RR)
84
16.8
57.3
Cropland 441
84
14.3
56.2
Garst 8590(IT/IMI)
83
14.8
57.1
Triumph 4542(Bt)
82
17.5
56.1
Triumph 1120(Bt/RR)
82
20.8
56.0
Novartis N45T5
81
12.5
54.7
NC+ 2300
80
13.9
55.6
Garst 8756(RR)
78
12.1
53.6
Pioneer brand 34G81
76
16.4
56.6
AgriPro 9313
71
13.3
55.5
AgriPro 9340
67
13.9
55.5
Average
87
14.1
56.2
LSD(0.30)
9.2
1Trial conducted on the Central Great Plains Research Center; seeded 5/18 and harvested 10/20. No significant lodge or ear drop.
2Abbreviations used with corn hybrids: Bt = transgenic corn borer protection, IR, IMI, IMT, PT = Imidazolinone Resistant (Pursuit, Resolve, Contour), LL = Liberty Link/Glufosinate herbicide tolerance, RR = Roundup Ready/roundup herbicide tolerance, YG = YieldGard/Cry1Ab corn borer resistance.

Table 7: Two-year average dryland corn performance
at Julesburg, 2000-01.
Hybrid2
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
DEKALB DKC53-32
51
21.6
52.4
Grand Valley SX1264
51
19.9
55.9
Seedex SX5701
50
15.9
54.3
DEKALB DK507
48
16.4
57.1
Grand Valley SX1229
46
15.2
55.0
Garst 8590
46
22.2
55.2
Garst 8756(RR)
46

16.3
52.3
AgriPro 9313
43
17.7
55.2
Average
48
18.2
54.7

Table 8: Dryland synthetic varieties performance
at Julesburg1 in 2001.
Hybrid2
Yield
Grain Moisture
Test Wt
 
bu/ac
%
lb/bu
HPAL C-8
42
16.5
55.7
HPAL C-1
40
16.3
56.4
HPAL C-7
36
16.4
56.4
HPAL C-2
36
16.4
55.2
HPAL C-5
35
16.5
55.3
HPAL C-6
35
16.7
54.6
HPAL C-4
34
16.5
55.1
HPAL C-3
33
16.6
54.9
HPAL C-9
31
16.4
56.4
HPAL C-10
28
16.5
56.2
Average
35
16.5
55.6
LSD(0.30)
5
1Trial conducted on the Josh Lechman farm; seeded 5/15 and harvested 10/22.

 
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