2017
Developing tools to protect soybean stand from seedling disease caused by Pythium species
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Contributor/Checkoff:
Iowa Soybean Association
Category:
Sustainable Production
Keywords:
Crop protectionDiseaseField management
Parent Project:
Developing tools to protect soybean stand from seedling disease caused by Pythium species
Lead Principal Investigator:
Alison Robertson, Iowa State University
Co-Principal Investigators:
Christopher J Anderson, Iowa State University
Arti Singh, Iowa State University
+1 More
Project Code:
450-30-53
Contributing Organization (Checkoff):
Iowa Soybean Association
$63,080
Institution Funded:
Iowa State University
$63,080
Brief Project Summary:

To optimize yield, soybean farmers are planting earlier each year, and cold fronts during that time are not uncommon. Cold, wet soils slow the germination process and increase the risk of seedling disease caused by Pythium that can result in stand loss. This research seeks to develop tools like a seedling disease risk model, genetic markers for Pythium resistance and cold tolerance that will improve understanding of the soybean-Pythium interaction. Research also screens varieties that vary in cold tolerance for susceptibility to Pythium species to determine if there is a relationship.

Key Benefactors:
farmers, agronomists, Extension agents

Information And Results
Project Deliverables

Identify period during germination when cold stress increases susceptibility to Pythium (Obj. 1)
Identify when during germination and emergence soybean is most susceptible to Pythium (Obj. 2)
Screen NAM parents for cold tolerance (Obj. 3)
Phenotype RILs for cold tolerance (Obj. 3)
Identify QTL for cold tolerance and compare with QTL for Pythium resistance (Obj. 3)
Capture seedling disease and weather data (Obj. 4)
Develop an empirical seedling disease risk model (Obj. 4)
Test seedling disease risk model (Obj. 4)
Share data with Iowa stakeholders via twitter, blogs, newsletters,
Identification of genetic markers for improved cold tolerance and Pythium resistance
Identification of germplasm with resistance to Pythium species and improved cold tolerance
Seedling disease risk model
Peer reviewed manuscripts

Final Project Results

Update:
Objective 1. The PhD student assigned to this objective and objective 3 successfully defended his PhD dissertation in Summer. A paper was submitted to Canadian Journal of Plant Pathology. A second paper will be submitted to Phytopathology this Fall. A poster was presented at the annual APS meeting in Texas. A PDF of the poster is attached.
Objective 2. Experiments were completed in summer. Data are being analyzed and interpreted. A poster was presented at the annual APS meeting in Texas. A PDF of the poster is attached.
Objective 3. This objective is complete.
Objective 4. Drs Sotorios Archonopolis and Andy Van Loocke will work with Dr Robertson and an M.S. student in statistics on developing the pre plant risk model. The student is currently capturing data.

View uploaded report PDF file

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.