MAFES Northeast Mississippi Branch, Verona
Soil type. . . . Leeper silty clay loam (bottomland site)
Soil pH. . . . . 7.1
Soil fertility . P--medium, K--high
Fertilizer added Preplant--0-20-20 @ 300 lb/a on 3/16/94
Sidedress--Nitrogen 80 lb/a on 4/25/94
Nitrogen 80 lb/a on 5/6/94
Herbicide application. . Preemergence--Paraquat @ 0.75 qt/a plus
Dual @ 1 qt/a plus
Atrazine @ 2 qt/a plus
Surfactant @ 0.4 pt/a
Planting date. . April 18
Harvest date . . September 21
Weather Summary
Land preparation, had to be delayed until mid-March, followed by dry weather resulted in delaying planting until
mid-April. Soil moisture conditions during the tasseling and grain-fill period were as much as 200% of normal.
Corn leaf rust infected all varieties in early August but appeared to have no influence on yields.
Rainfall Summary
Inches
March. . . . . . 11.41
April. . . . . . 2.08
May. . . . . . . 4.39
June . . . . . . 7.57
July . . . . . . 9.57
August . . . . . 2.91
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Total. . . . . . 37.93
Table 3A. Results from 39 corn hybrids grown without irrigation at the MAFES Northeast
Mississippi Branch, Verona, 1994 (early maturity)
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Yield 2 yr Root Stalk Ear Harvested
Hybrid 1994 avg. Lodging Lodging Ht. Stand
Number Brand ---(bu/acre)--- (%) (%) (in) Moisture (x1000)
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4653 Deltapine 126.5 -- 0 0 42 16.3 21.5
N 7989 Northrup King 123.1 106.2 0 0 40 15.2 23.5
8695 Deltapine 123.0 105.7 0 0 43 15.5 20.5
DK 683 Dekalb 118.1 -- 0 0 44 14.9 21.5
7997 Cargill 117.6 -- 1 0 39 16.6 22.0
8327 Cargill 113.6 -- 0 2 41 16.5 23.5
TR E1168 Terra 113.2 97.0 0 0 35 17.7 20.5
TV 2543 Terral 113.1 103.6 0 0 41 14.8 21.5
X1183C Pioneer 112.3 -- 0 0 40 16.6 19.0
4581 Deltapine 111.9 101.5 0 0 39 16.1 22.5
810 AgraTech 111.3 -- 0 0 38 14.5 19.0
RX 897 Asgrow 111.2 105.0 0 0 45 14.6 18.0
5510 DynaGrow 109.5 102.7 0 1 37 16.7 23.0
N 8020 Northrup King 109.4 -- 0 0 38 14.5 21.5
DK 649 Dekalb 109.2 99.6 0 1 36 17.0 22.5
3115 Southland 109.2 -- 0 0 43 15.7 20.0
TR 1167 Terra 106.7 -- 0 0 40 15.1 22.5
HS 9843 HyPerformer 106.5 94.0 0 1 43 14.8 21.0
ICI 8220 ICI 105.9 -- 0 0 36 14.9 17.5
RX 801 Asgrow 105.9 -- 0 0 37 15.4 22.0
TR 1185 Terra 105.0 -- 0 0 44 17.0 23.0
RX 919 Asgrow 105.0 -- 0 0 43 15.5 21.0
3245 Pioneer 103.6 97.2 0 5 36 16.2 17.5
3394 Pioneer 103.1 98.5 0 0 40 14.9 20.5
64W Zimmerman 102.0 -- 0 2 44 15.6 18.0
N 7707 Northrup King 99.3 97.9 0 0 36 16.4 21.5
8936 Cargill 98.9 -- 1 0 42 17.0 21.0
N 8206 ICI 98.5 -- 0 0 32 18.6 18.5
X830 Southland 98.2 -- 0 1 46 14.4 19.0
HS 9773 HyPerformer 98.1 98.9 0 2 39 16.7 16.0
888 AgraTech 97.8 96.5 0 0 40 14.9 18.5
RX 899 Asgrow 97.7 94.0 0 0 38 16.0 17.5
16W Zimmerman 97.1 -- 0 0 44 16.3 19.0
ORO 188 Mycogen 96.9 89.5 0 3 43 15.3 18.5
5111 Southland 95.8 -- 0 1 39 15.3 19.0
ICI 8281 ICI 93.9 -- 0 0 35 15.5 21.0
RX 907 Asgrow 93.4 -- 0 0 40 17.0 17.5
TVX 2643 Terral 92.3 -- 0 0 42 16.7 21.0
4682 Deltapine 80.7 88.6 0 0 43 18.7 21.5
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Overall Mean 105.5 98.6 Planted April 18
LSD @ .10 17.8 10.8 Harvested September 21
Error Degrees of Freedom 114 96
CV % . . . . . . . . 14.4 13.1
R squared % . . . . 37 57
Table 3B. Results from 22 corn hybrids grown without irrigation at the MAFES Northeast
Mississippi Branch, Verona, 1994 (late maturity)
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Yield 2 yr Root Stalk Ear Harvested
Hybrid 1994 avg. Lodging Lodging Ht. Stand
Number Brand ---(bu/acre)--- (%) (%) (in) Moisture (x1000)
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HB 847002 HyPerformer 109.0 -- 0 1 41 14.8 22.0
967 AgraTech 106.4 -- 0 1 36 15.3 16.0
3163 Pioneer 106.1 99.3 0 1 40 14.2 21.5
X810 Southland 104.7 -- 1 2 51 16.3 21.0
X1183F Pioneer 103.4 -- 0 1 41 14.0 18.0
3165 Pioneer 100.4 92.0 0 3 42 15.0 19.0
DK 743 Dekalb 98.7 99.0 0 5 41 15.6 20.5
N 8811 Northrup King 97.7 95.5 0 1 36 15.9 20.5
3085 Pioneer 97.6 92.2 0 6 47 15.1 18.5
3156 Pioneer 96.7 -- 0 0 46 14.7 18.0
TV 2930 Terral 95.8 84.2 0 6 39 15.2 20.5
N 8727 Northrup King 95.5 91.3 0 3 36 15.8 21.5
3154 Pioneer 93.9 93.9 0 5 44 15.4 16.0
N 8656 Northrup King 93.8 -- 0 0 40 14.5 21.5
TR 702E Terra 93.4 89.8 0 4 35 14.9 21.0
XP 9380 Asgrow 90.6 -- 0 5 40 15.2 17.0
HY 9919 HyPerformer 90.2 88.0 0 0 35 15.0 18.5
DK 714 Dekalb 90.2 -- 0 6 41 15.4 20.5
3167 Pioneer 89.0 94.2 0 3 43 15.7 19.0
HS 9944 HyPerformer 81.8 79.5 0 0 39 14.5 19.0
3146 Pioneer 80.5 80.3 0 4 42 14.9 20.0
HY 9899V HyPerformer 77.2 -- 0 6 46 15.5 19.0
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Overall Mean 95.1 90.7 Planted April 18
LSD @ .10 16.0 10.1 Harvested September 21
Error Degrees of Freedom 63 72
CV % . . . . . . . . 14.3 13.4
R squared % . . . . 54 59