Database Research Summaries2017 Evaluation of SCN Populations in Ohio
Research Focus
The focus of this project is to evaluate the levels and genotypes of SCN populations in Ohio, gather evidence for shifts in SCN genotypes in virulent strains of SCN when alternative SCN resistant germplasm is used, and examine Ohio State’s breeding germplasm for new SCN resistance genes.
Objectives
- Evaluate SCN populations in Ohio for virulence on SCN resistant soybean germplasm.
- Examine how SCN populations shift when alternative SCN resistant germplasm is used.
- Evaluate OSU soybean germplasm for new SCN resistance genes.
Results
- SCN populations from Seneca, Crawford and Putnam counties that were originally maintained on SCN resistant soybean Peking and PI88788 have been isolated and split and planted onto Peking and PI 88788.
- Populations are being assessed for changes in Hg-type. – SCN females from Putnam and Williams County were found growing on PI 437654.
- The eggs from these collected cysts were placed onto Hutcheson and amplified. Collected cysts were placed back onto PI88788, Peking and PI 437654. Cysts were collected from all three and are being amplified for Hg typing.
Importance
- This data will be used to help inform soybean growers about the best cultural practices to reduce the chances of these highly virulent nematodes from developing.
- This data will be delivered to the soybean breeders for their consideration when they are breeding new soybean varieties for public release.
For more information about this research project, please visit the National Soybean Checkoff Research Database.
Funded in part by the soybean checkoff.
