| Project Title: | The Effect of Seed Treatment, Film Coating to Enhance Soybean Seed Quality and Evaluation of Soybean Seed Quality on Seed Produced from Treated and Non-treated Planting Seed |
| Project Leader: | Bennie C. Keith |
| Department: | Plant and Soil Science/Seed Technology |
Field experiments were conducted in 1996 to evaluate the effect of seed treatments, film coatings and a combination of the two on quality attributes on soybean seeds. This field evaluation was conducted at the North Farm Research Center at Mississippi Sta te University. Two quality levels "High" and "Low" of the same variety soybean seeds were treated with the recommended rate of: 1) Vitavax plus Apron; 2) Color film; 3) Combination of Vitavax, Apron, and color film and a control.
Stand establishments were taken at eight, sixteen, and twenty-three days. There was no difference in stand establishment between any of the treatments or control. However, there were differences between the quality level. The "high" quality level seed had higher seedlings per meter of row for all treatments and control.
Plots were carried to field maturity and yields were taken on October 22, 1996. A delayed harvest was taken November 5, 1996 to allow for field weathering. Preliminary data indicates a large difference in yield. This data must be analyzed statistically be fore final conclusions can be determined. Disease evaluations were conducted on the harvested seed and delayed harvested seed. The control had the highest number of diseased seeds. Seeds from the treated plots, both chemical treated and color film showed no difference. The same will hold true for the delayed harvested seed.
Laboratory evaluations were conducted on the seeds from plots harvested at field maturity and delayed harvested. Standard germination, Accelerated aging and TZ test and seedling growth rates were conducted to evaluate quality. Statistical analysis must be conducted before conclusions can be determined.
All data will be statistically analysis and conclusion given by early spring 1997. This will be reported in MAFES bulletins and provided to the Soybean Promotion Board and farmers.
Preliminary test results indicate a need for further evaluations. Farmers have been told to treat planting materials with seed treatments for protection of germinating seed and enhance seedling establishment. Very little research has been conducted to eva luate the benefits seed treatment provides to the harvested seed.
I am requesting an extension of this project to evaluate several chemical treatments and their effectiveness in providing protection at germination and seedling establishment along with evaluation of seed quality at harvest.
Early maturity soybean seeds will be treated with Thiram, Captan, Vitavax, Apron and Maxium in replicated plantings. Plantings (Randomized Complete Block) of soybean seed treated, non-treated and combinations of treatment will be made on the MAFES Plant R esearch Center in mid April. Stand establishment/field emergence will be taken at seven, 14, and 21 days from planting date. Agronomic properties (stand count, disease reaction, lodging, maturity date, yield, etc.) Will be evaluated throughout the growing and harvest phase. Delayed harvest to impose field exposure (deterioration) will be made four weeks after harvest maturity. Seed quality will be evaluated at all stages of testing. This approach will reveal effects of seed treatments and seed quality of treated and non-treated seed production.
A budget justification is given in Appendix A to accomplish this additional research. This research will also add additional data in support of current research, which is in the final stage of completion.
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