Characterizing the Fusarium Species that Affect Major Crops in Manitoba

Crop Pea, Soybean
Start Date2016
End Date2017
Principal InvestigatorDaayf, Fouad, University of Manitoba
MPSG Financial Support$47,400
Total Project Funding$174,800
ReportFinal Extension Report

Research Objectives

  1. Investigate the cross-pathogenicity between the Fusarium strains (including F. graminearum) infecting soybean and those infecting wheat, barley, and oat
  2. Investigate the competitiveness of Fusarium species isolated from both pea/soybean and cereals
  3. Investigate toxin producing potential of the F. graminearum isolates from soybean versus those from cereals
  4. Investigate genetic diversity of selected Fusarium species infecting these crops

Project Description

Fusarium species cause disease in several economic crops in Manitoba; specifically, root rots in soybeans and pulses and Fusarium head blight (FHB) in wheat. Traditionally, FHB has been known to be caused by F. graminearum, whereas F. solani and F. oxysporum were associated with root rots in soybeans and peas; however, there were indications from field observation and the literature that possible cross pathogenicity of F. graminearum amongst crops exists. In 2014, F. graminearum was identified as a new root rot pathogen of soybean in Manitoba disease surveys.  The presence of F. graminearum in soybean and pea fields presents a threat to wheat production because of the extension of the host array and of potential alternative hosts for the disease could increase disease incidence or severity. Farmers in Manitoba regularly have problems with FHB causing lower yields, seed grade and seed germination. In addition, F. graminearum produces mycotoxin deoxynivalenol, which poses safety issues for both human and animal consumption.  This project will generate information that may be used to modify crop rotations to optimize productivity, sustainability and safety of wheat and soybeans/pea grain production.