The Georgia Agricultural Experiment Stations
College of Agricultural and Environmental Sciences
The University of Georgia		 Research Report
Number 668
November, 2000
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Tifton, Georgia: Short-Season Corn Hybrid Performance, 2000, Nonirrigated
      Yield1              
Company or
Brand Name		   Hybrid Name 2000 3-Year Average   Ears/100 Plants Ear Grain Weight Grain Quality2 Grain Moisture3 Plant Population Erect Plants
      bu/acre   no. lb rating % no. %
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Pioneer   31G98 117.4 .   104 0.25 1.8 16.2 25809 98
Pioneer   3223 115.7 132.1   98 0.26 1.3 17.1 25700 79
DeKalb   DK679BtY 110.0 .   103 0.25 1.5 15.4 23849 66
DeKalb   DK 650 108.5 .   106 0.22 1.8 14.3 25156 89
AgraTech   777 108.3 .   98 0.24 2.0 16.5 25700 91
                       
AgriPro   HS 9843 108.2 128.4   97 0.25 1.8 17.0 25701 96
Croplan Genetics   818 108.1 .   100 0.26 2.0 18.6 24394 99
DeKalb   DKC65-25 108.1 .   102 0.24 1.8 15.3 24612 85
Pioneer   34B23 106.4 .   99 0.25 2.0 14.0 24067 100
Funk' G   4581 105.8 138.0   97 0.25 1.8 16.0 24612 95
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Zimmerman   Z37 105.3 .   102 0.24 2.0 17.8 24829 82
AgraTech   770 105.1 .   102 0.24 1.8 16.3 23740 86
Croplan Genetics   TR1129RR 103.5 .   98 0.24 2.0 16.0 25047 98
Garst   8222IT 103.5 .   95 0.25 2.0 19.3 25047 100
Funk's G   5510-A 103.5 131.2   96 0.27 1.8 18.5 23305 94
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Southern States   SS729CL 103.3 .   97 0.25 1.5 15.7 24176 81
Funk's G   5516 103.2 138.2   100 0.24 1.8 16.0 24285 81
AgriPro   HY 9646 102.4 123.8   100 0.24 1.5 16.2 24394 89
Terra   TR1157 102.3 .   99 0.24 1.5 16.5 23849 96
AgraTech   787 101.9 124.8   99 0.25 1.5 16.7 23523 93

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AgriPro   AP 9707 101.7 129.8   100 0.24 1.8 16.1 24285 89
Pioneer   3245 100.9 130.9   96 0.23 1.8 15.2 24829 95
Southland Genetics   SG1580 99.9 .   99 0.24 2.0 16.4 23958 98
Southland Genetics   SG1611 99.0 .   101 0.24 1.8 16.6 23304 82
Southern States   SS769BT 97.1 .   99 0.22 2.0 16.0 25592 96
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Zimmerman   1851W 96.3 .   97 0.23 2.0 19.5 25265 91
Asgrow   RX764 95.9 .   87 0.24 2.0 15.1 25700 100
Pioneer   32k61 94.0 129.1   96 0.22 2.3 17.2 25265 96
Croplan Genetics   TR1166Bt 93.1 .   98 0.21 1.5 16.0 25809 96
Croplan Genetics   TR1106 83.4 .   89 0.21 2.0 15.9 24612 96
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Croplan Genetics   TR1089RR 79.6 .   86 0.21 2.3 15.4 23740 97
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Average   102.34 130.6   98 0.24 1.8 16.4 24650 91
LSD at 10% Level 13.7 N.S.5   6 N.S. N.S. 0.8 1277 12
Std. Err. of Entry Mean 5.8 4.2 3 0.01 0.2 0.3 544 5
            
1. Yields calculated at 15.5% moisture.
2. Grain quality rating: 1 = excellent to 5 = poor.
3. Grain moisture at harvest.
4. CV = 11.4%, and df for EMS = 90.
5. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated.
Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10).
Planted: March 22, 2000.
Harvested: August 9, 2000.
Seeding Rate: 26,000 seeds/acre in 30" rows.
Soil Type: Tifton loamy sand.
Soil Test: P = High, K = Medium, and pH = 6.5.
Fertilization: 69 lb N, 70 lb P2O5, and 105 lb K2O/acre as preplant; 99 lb N/acre as sidedress.
Previous Crop: Soybean.
Management: Subsoiled, bedded, and rototilled; Aatrex, Prowl, and one cultivation used for weed control; Lorsban used for insect control; Nemacure used for nematode control.
            
Test conducted by A. E. Coy and M. D. Pippin.
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