| 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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| Blairsville, 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. | % | |||||
| NK | N91-R9 * | 241.8 | 244.3 | 118 | 0.47 | 1.0 | 20.8 | 26136 | 100 | ||
| Southern States | SS842RR | 234.0 | . | 106 | 0.53 | 1.0 | 20.8 | 25047 | 98 | ||
| DeKalb | DK 697 | 228.7 | 242.0 | 115 | 0.47 | 1.0 | 19.3 | 24805 | 89 | ||
| Garst/AgriPro | 8288 | 212.7 | . | 114 | 0.50 | 1.0 | 19.4 | 22385 | 100 | ||
| Garst | 8230IT | 209.8 | . | 111 | 0.47 | 1.0 | 20.4 | 23958 | 100 | ||
| NK | N 83-N5 | 208.3 | 228.1 | 105 | 0.46 | 1.0 | 19.7 | 25652 | 99 | ||
| DeKalb | DK687RR | 203.5 | . | 124 | 0.37 | 1.0 | 19.4 | 25894 | 100 | ||
| Pioneer | 31R88 | 202.8 | 216.3 | 109 | 0.46 | 1.0 | 20.5 | 24079 | 100 | ||
| DeKalb | DKC68-70(YG) | 194.7 | . | 122 | 0.41 | 1.0 | 19.9 | 23474 | 100 | ||
| Garst | 8118RR | 181.0 | . | 101 | 0.47 | 1.0 | 20.7 | 22869 | 92 | ||
| Asgrow | RX897RR | 175.1 | . | 118 | 0.40 | 1.0 | 18.4 | 22385 | 100 | ||
| Croplan Genetics | 702 | 170.3 | . | 101 | 0.39 | 1.0 | 19.0 | 25047 | 84 | ||
| Average | 205.24 | 232.7 | 112 | 0.45 | 1.0 | 19.8 | 24311 | 97 | |||
| LSD at 10% Level | 17.0 | 9.1 | 10 | 0.05 | - | 1.0 | N.S.5 | 8 | |||
| Std. Err. of Entry Mean | 7.1 | 4.6 | 4 | 0.02 | - | 0.4 | 1174 | 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 = 6.9%, and df for EMS = 33. | |||||||||||
| 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: | April 30, 2002. | ||||||||||
| Harvested: | October 17, 2002. | ||||||||||
| Seeding Rate: | 26,500 seeds/acre in 30" rows. | ||||||||||
| Soil Type: | Bradson clay loam. | ||||||||||
| Soil Test: | P = High, K = High, and pH = 6.2. | ||||||||||
| Fertilization: | 77 lb N, 77 lb P2O5, and 77 lb K2O/acre as preplant; 150 lb N/acre as sidedress. | ||||||||||
| Previous Crop: | Soybean. | ||||||||||
| Management: | Moldboard plowed and disked; Aatrex, Bicep and one cultivation used for weed control. | ||||||||||
| Test conducted by P. A. Rose and H. D. Garrett. | |||||||||||