| The Georgia Agricultural Experiment Stations College of Agricultural and Environmental Sciences The University of Georgia |
Research Report Number 670 January, 2001 |
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| Tifton,
Georgia: Round-up Ready Soybean Variety Performance, 2000 |
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| Company or Brand Name | Variety | Yield1 | Maturity | Plant Height | Lodging2 | Weight of 100 Seed | Seed Quality3 | Shattering4 | |
| bu/acre | date | in | rating | gm | rating | rating | |||
| Maturity Group V | |||||||||
| Hartz | H5885RR | 21.8 | 09/27 | 23 | 1.0 | 11.2 | 1.7 | 1.0 | |
| Asgrow | AG5902 | 20.4 | 10/02 | 23 | 0.9 | 10.7 | 2.0 | 1.0 | |
| Asgrow | AG5501 | 19.1 | 09/28 | 21 | 1.0 | 12.5 | 2.0 | 1.0 | |
| Pioneer | 95B95 | 18.2 | 10/01 | 24 | 0.9 | 10.7 | 2.0 | 1.3 | |
| So. States | SSRT557N | 17.8 | 09/30 | 19 | 1.0 | 12.3 | 1.7 | 1.7 | |
| Hartz | H5231RR | 16.9 | 09/28 | 17 | 0.9 | 10.9 | 1.7 | 2.0 | |
| So. States | SSXPRT46704 | 16.5 | 09/28 | 25 | 1.5 | 13.0 | 1.7 | 2.0 | |
| So. States | SSRT5999N | 16.2 | 09/30 | 23 | 1.0 | 11.6 | 1.7 | 3.3 | |
| So. States | SSRT587N | 12.4 | 09/28 | 19 | 0.9 | 12.9 | 1.7 | 1.7 | |
| Average | 17.75 | 09/29 | 21 | 1.0 | 11.8 | 1.8 | 1.7 | ||
| LSD at 10% Level | N.S.6 | 03 | 4 | 0.2 | 0.8 | N.S. | 1.0 | ||
| Std. Err. of Entry Mean | 2.4 | 01 | 2 | 0.1 | 0.3 | 0.3 | 0.4 | ||
| Maturity Group VI | |||||||||
| Univ of Ga | G99-G725 | 18.9 | 10/06 | 23 | . | 8.3 | 2.0 | . | |
| So. States | SSRT6999N | 18.3 | 10/12 | 25 | . | 10.4 | 2.0 | . | |
| So. States | SSRT6299N | 16.5 | 10/07 | 25 | . | 12.3 | 2.0 | . | |
| Pioneer | 96B21 | 15.0 | 10/03 | 22 | . | 12.2 | 2.0 | . | |
| Average | 17.17 | 10/07 | 24 | . | 10.8 | 2.0 | . | ||
| LSD at 10% Level | N.S. | - | N.S. | 0.8 | - | ||||
| Std. Err. of Entry Mean | 1.7 | - | 1 | 0.6 | - | ||||
| Maturity Groups VII and VIII | |||||||||
| A Group VII & VIII soybean trial was conducted at this location during the 2000 growing season. However, extremely high temperatures and drought caused considerable variation in performance amongplots within the test. After careful analysis and review of this data, it is the opinion of the editors that the results of this trial may not accurately reflect the performance potential of all test entries. Sincethis data could potentially be misleading if used in making decisions concerning variety selection, we have chosen not to present them in this publication. Results from this test will be provided upon request. | |||||||||
| 1. Yields calculated at 13% moisture. | |||||||||
| 2. Lodging rating: Rated 1 (all plants erect) to 5 (over 80% of plants down). | |||||||||
| 3. Seed quality rating: Rated 1 (very good) to 5 (very poor). | |||||||||
| 4. Shattering rating: Rated 1 (no shattering) to 5 (>50% pods shattered). | |||||||||
| 5. CV = 23.9% and df for EMS = 16. | |||||||||
| 6. The F-test indicated no statistical differences at the alpha = .10 probability level; therefore, a LSD value was not calculated. | |||||||||
| 7. CV = 17.4% and df for EMS = 6. | |||||||||
| Bolding within each test denotes entries with yields equal to the highest yielding entry based on Fisher's protected LSD (P = 0.10). | |||||||||
| Planted: | June 14, 2000. | ||||||||
| Harvested: | October 19, 2000. | ||||||||
| Seeding Rate: | Eight viable seeds per foot in 30" rows. | ||||||||
| Soil Type: | Tifton loamy sand. | ||||||||
| Soil Test: | P = High, K = Low, and pH = 5.4. | ||||||||
| Fertilization: | 0 lb N, 0 lb P2O5, and 90 lb K2O/acre. | ||||||||
| Previous Crop: | Fallow. | ||||||||
| Management: | Moldboard plowed and rototilled; Roundup Ultra used for weed control. | ||||||||
| Test conducted by A. E. Coy and M. D. Pippin. | |||||||||
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