Database Research Summaries2018 Management of soybean cyst nematode through rotation of soybean cyst nematode resistant varieties, and other management practices
Research Focus
The focus of this project is to evaluate the effect of rotating the PI88788 source of resistance with Peking and compare using no rotation.
Objectives
- Evaluate the effects of rotation of different sources of SCN resistance on SCN type, nematode numbers, and yield. Additionally, determine which rotation is most effective in resistance management.
- Further corroborate Fred Warner’s observation that a certain percentage of naïve nematodes to Peking source of resistance, but exposed to PI88788, can still reproduce on Peking.
Results
- As of September 11, 2018, the initial SCN soil samples have been collected and visual evaluations for plant establishment and early season vigor have been completed as necessary for all the above trials. Processing of the initial soil samples is an ongoing effort in combination with all other samples handled by the Applied Nematology Lab. Not all of the initial sample counts are completed and therefore no analysis has yet been completed.
- The fall SCN samples will be collected at the time of soybean harvest and then the change from the initial samples will be determined.
- Some of the early season plant vigor ratings are showing some trends favoring some of the treatments over the control plots. However, no significant differences in vigor have been obtained at the present time.
Importance
This information will help farmers know what is the best management practice to combat soybean cyst nematode.
For more information about this research project, please visit the National Soybean Checkoff Research Database.
Funded in part by the soybean checkoff.
