| The Georgia Agricultural Experiment Stations College of Agricultural and Environmental Sciences The University of Georgia |
2003 Corn
Performance Tests Research Report Number 690 October 2003 |
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| Table of Contents | |||||||||||
| Calhoun, Georgia: Evaluation of Corn Hybrids for Silage, 2003, Irrigated |
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| Company or | Hybrid | Maturity | Forage Yield | Dry | Grain | Plant | 2-Yr Avg Dry Forage |
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| Brand Name | Name | Class | Dry | Green | Matter | Portion | Population | Yield | |||
| tons/acre | % | % | no. | tons/acre | |||||||
| Pioneer | 32D99 | S | 9.1 | 24.5 | 37.2 | 54 | 26555 | . | |||
| NK | N 83-N5 | M | 7.5 | 16.2 | 45.9 | 52 | 22698 | 10.0 | |||
| Southern States | SS842RR | M | 7.1 | 20.1 | 35.5 | 56 | 27009 | 10.2 | |||
| DeKalb | DKC69-71(RR/YGCB) | M | 7.0 | 16.7 | 41.6 | 54 | 26830 | . | |||
| NK | 1851W | S | 6.8 | 18.4 | 37.3 | 49 | 24829 | 10.2 | |||
| NK | N91-R9 | F | 6.7 | 20.4 | 32.9 | 51 | 26539 | 9.2 | |||
| Croplan Genetics | 827RR | S | 6.7 | 19.1 | 35.1 | 48 | 22780 | 8.7 | |||
| Croplan Genetics | DS830 | M | 6.6 | 15.3 | 43.0 | 57 | 27991 | . | |||
| Greenwood | 863 | F | 6.5 | 22.7 | 28.5 | 41 | 27805 | . | |||
| Pioneer | 33J56 | S | 6.4 | 14.9 | 42.7 | 60 | 23740 | . | |||
| Garst | 8230IT | M | 6.4 | 17.5 | 36.5 | 54 | 27516 | . | |||
| AgraTech | 1836 | F | 6.2 | 17.0 | 36.8 | 42 | 25393 | 8.2 | |||
| Greenwood | 865 | F | 6.2 | 23.4 | 26.8 | 31 | 22043 | . | |||
| Croplan Genetics | 780RR/Bt | M | 6.2 | 16.5 | 37.4 | 52 | 23740 | . | |||
| Pioneer | 33V15 | S | 6.2 | 13.8 | 44.4 | 56 | 28051 | . | |||
| Dyna-Gro | 58K22 | S | 6.2 | 15.1 | 41.2 | 53 | 22698 | . | |||
| AgraTech | 919RR | M | 6.1 | 15.4 | 39.6 | 53 | 23350 | . | |||
| DeKalb | DKC67-60(RR) | S | 6.0 | 18.4 | 32.4 | 51 | 23304 | . | |||
| Greenwood | 780 | M | 5.9 | 16.0 | 37.0 | 51 | 20084 | 7.5 | |||
| Croplan Genetics | 895Bt | M | 5.8 | 14.8 | 38.7 | 55 | 25092 | . | |||
| Golden Acres | 7511 | M | 5.7 | 13.0 | 43.5 | 54 | 22216 | . | |||
| Dyna-Gro | 58K56 | M | 5.6 | 15.0 | 37.2 | 54 | 23279 | . | |||
| Garst | 8288 | M | 5.3 | 12.9 | 41.1 | 61 | 20473 | 8.6 | |||
| AgraTech | 1020 | F | 5.3 | 15.5 | 33.9 | 43 | 18731 | . | |||
| Greenwood | 835 | F | 5.1 | 18.3 | 27.6 | 44 | 20669 | 8.5 | |||
| Golden Acres | 8681FQ | M | 4.9 | 13.3 | 36.6 | 52 | 19794 | . | |||
| Average | 6.3 1 | 17.1 | 37.3 | 51 | 23970 | 9.0 | |||||
| LSD at 10% Level | 1.1 | 2.4 | 4.1 | 5 | 2266 | 1.7 | |||||
| Std. Err. of Entry Mean | 0.4 | 1.0 | 1.7 | 2 | 962 | 0.7 | |||||
| 1. CV = 14.2%, and df for EMS = 75. | |||||||||||
| 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 15, 2003. | ||||||||||
| Harvested: | August 25, 2003. | ||||||||||
| Seeding Rate: | 29,000 seeds/acre in 30" rows. | ||||||||||
| Soil Type: | Waynesboro loam. | ||||||||||
| Soil Test: | P = High, K = High, and pH = 6.4. | ||||||||||
| Fertilization: | 75 lb N, 90 lb P2O5, and 180 lb K2O/acre as preplant; 200 lb N/acre as sidedress. | ||||||||||
| Previous Crop: | Soybean. | ||||||||||
| Management: | Subsoiled,
chisel plowed, disked, and rototilled; Aatrex, Lasso, and Accent used for
weed control; irrigated 0 inches. |
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| Test conducted by P. A. Rose, G. Rawls, and J. Stubbs. | |||||||||||