Pulse Industry

Developing and assessing molecular diagnostic procedures for the rapid, specific and sensitive detection of root rot pathogens in symptomatic field pea roots

Root rot is a major disease of field pea across the Canadian prairies and is capable of causing significant yield reductions due to reduced plant stands and compromised root systems. These diseases can severely reduce seedling emergence, quickly destroy the plant’s root system and limit the crops ability to compete with weeds and to fix nitrogen. Yield losses in field pea can range as high as 30 57%.

Objectives of this project include:

  • Identification of molecular diagnostic procedures for the rapid, specific and sensitive detection of root rot pathogens in symptomatic field pea roots.
  • Identification of new sources of resistance to the prevalent root rot pathogens and development of molecular markers that are closely linked to resistance genes for aphanomyces root rot.
  • Development of a risk assessment tool for fusarium root rot by collecting quantitative data, using molecular tools, on soil and root pathogen levels and correlation with root rot severity data; evaluation of inoculum level and seed treatment effects on disease and yield at sites in Alberta and Saskatchewan; assessment of the response of registered field pea cultivars in commercial fields that have been identified as high-risk in selected soil zones in Alberta
  • Coordination of field surveys and field trials to develop and assess best management practices for new and emerging root rot pathogens.


Theme: Genetic Improvement
Project Title: Develop and assess molecular diagnostic procedures for the rapid, specific and sensitive detection of root rot pathogens in symptomatic field pea roots
Funding partners: Manitoba Pulse and Soybean Growers, Saskatchewan Pulse Growers and Agriculture and Agri‐Food Canada
Research Team: Dr. Bruce Gossen – AAFC Saskatoon; Dr. Debra McLaren – AAFC Brandon; Dr. Sheau-Fang Hwang – Alberta Agriculture; Dr. Kan-Fa Chang – Alberta Agriculture; Dr. Stephen Strelkov – University of Alberta; Dr. Robert Conner – AAFC Morden; Dr. Syama Chatterton – AAFC Lethbridge; Dr. Nora Foroud – AAFC Lethbridge



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