| 2002 Corn Performance Tests | Table of Contents | ||||||||||
| The Georgia Agricultural Experiment Station College of Agricultural and Environmental Sciences The University of Georgia |
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| Research Report Number 684 October 2002 |
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| Tifton, Georgia: Mid and Full-Season Corn Hybrid Performance, 2002, Nonirrigated |
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| Yield1 | |||||||||||
| Company
or Brand Name |
Hybrid Name |
2002 | 3-Year Average |
Ears/100 Plants |
Ear Grain Weight |
Grain Quality2 |
Grain Moisture3 |
Plant Population |
Erect Plants |
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| bu/acre | no. | lb | rating | % | no. | % | |||||
| Southern States | SS842RR | 134.5 | . | 109 | 0.32 | 1.5 | 17.1 | 22543 | 96 | ||
| AgraTech | 803RR | 134.3 | . | 113 | 0.34 | 1.0 | 17.5 | 20473 | 96 | ||
| Pioneer | 31R88 | 134.1 | 147.6 | 110 | 0.31 | 1.0 | 17.1 | 22325 | 97 | ||
| AgraTech | 905RR | 124.8 | . | 108 | 0.30 | 2.0 | 15.6 | 21345 | 95 | ||
| DeKalb | DK 697 | 124.2 | 140.0 | 111 | 0.28 | 1.0 | 16.9 | 23196 | 100 | ||
| NK | N 83-N5 | 123.3 | 132.0 | 113 | 0.28 | 1.0 | 14.7 | 21780 | 95 | ||
| DeKalb | DKC68-70(YG) | 122.1 | . | 122 | 0.27 | 1.5 | 17.0 | 21344 | 96 | ||
| DeKalb | DK687RR | 121.7 | . | 116 | 0.26 | 1.0 | 16.5 | 22651 | 99 | ||
| NK | N91-R9 * | 120.3 | 129.7 | 107 | 0.30 | 1.5 | 17.4 | 21671 | 87 | ||
| Croplan Genetics | DS822RR | 119.4 | . | 106 | 0.31 | 1.5 | 16.7 | 20582 | 88 | ||
| DeKalb | DKC69-70(YG) | 118.4 | . | 109 | 0.26 | 1.0 | 17.7 | 23522 | 99 | ||
| Garst | 8118RR | 117.9 | . | 104 | 0.32 | 1.5 | 17.7 | 20582 | 98 | ||
| Croplan Genetics | 827 | 116.7 | . | 93 | 0.34 | 1.5 | 16.3 | 21445 | 96 | ||
| Garst/AgriPro | 8288 | 110.5 | . | 103 | 0.35 | 1.5 | 17.6 | 17969 | 100 | ||
| CPES-USDA | TY001 | 109.4 | . | 117 | 0.33 | 1.0 | 18.0 | 16662 | 88 | ||
| CPES-USDA | TY005 | 109.0 | . | 104 | 0.30 | 1.5 | 16.1 | 20038 | 87 | ||
| CPES-USDA | TY004 | 106.7 | . | 116 | 0.27 | 1.5 | 16.2 | 19711 | 95 | ||
| Asgrow | RX897RR | 105.8 | . | 105 | 0.25 | 1.0 | 15.1 | 22434 | 96 | ||
| Golden Acres | 8311 | 105.6 | . | 108 | 0.26 | 2.0 | 15.9 | 21453 | 95 | ||
| Croplan Genetics | 702 | 100.0 | 130.7 | 103 | 0.28 | 1.0 | 16.8 | 19820 | 85 | ||
| Golden Acres | 8681FQ | 99.5 | . | 107 | 0.24 | 2.0 | 15.0 | 21236 | 91 | ||
| CPES-USDA | TY002 | 95.5 | . | 102 | 0.25 | 1.5 | 15.5 | 21345 | 97 | ||
| CPES-USDA | TY003 | 93.9 | . | 112 | 0.28 | 2.0 | 16.3 | 17207 | 97 | ||
| Average | 115.14 | 136.0 | 109 | 0.29 | 1.4 | 16.5 | 20927 | 94 | |||
| LSD at 10% Level | 19.6 | N.S.5 | 8 | 0.06 | - | 1.3 | 2464 | 7 | |||
| Std. Err. of Entry Mean | 8.3 | 4.8 | 3 | 0.02 | - | 0.6 | 1044 | 3 | |||
| * Full-season hybrid. | |||||||||||
| 1. Yields calculated at 15.5% moisture. | |||||||||||
| 2. Grain quality rating: 1 = excellent to 5 = poor. | |||||||||||
| 3. Grain moisture at harvest. | |||||||||||
| 4. CV = 14.5%, and df for EMS = 66. | |||||||||||
| 5. The F-test indicated
no statistical differences at the alpha = .10 probability level; therefore a
LSD value was not calculated. |
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| Bolding indicates entries yielding equal
to highest yielding entry within a column based on Fisher's protected LSD
(P = 0.10). |
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| Planted: | March 25, 2002. | ||||||||||
| Harvested: | August 6, 2002. | ||||||||||
| Seeding Rate: | 24,000 seeds/acre in 30" rows. | ||||||||||
| Soil Type: | Tifton loamy sand. | ||||||||||
| Soil Test: | P = High, K = Medium, and pH = 6.3. | ||||||||||
| Fertilization: | 35 lb N, 70 lb P2O5, and 105 lb K2O/acre as preplant; 145 lb N/acre as sidedress. | ||||||||||
| Previous Crop: | Soybean. | ||||||||||
| Management: | Subsoiled and
bedded, rototilled; Prowl, Atrazine, Accent, and Permit used for weed
control; Telone II used for nematode control. |
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| Test conducted by A. E. Coy, M. D. Pippin, R. E. Brooke, and T. L. Hancock. | |||||||||||