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Developing herbicide tolerance in dry bean

For dry edible beans, the herbicide imazethapyr is generally utilized to control broadleaf weeds. Although dry beans have a good tolerance to this herbicide, a major disadvantage is a narrow margin of crop safety which can result in crop injury and reduced yield. Imidazolinone resistant cultivars have been developed for several crops, including wheat, canola, sunflower and lentils and marketed in Western Canada , and this project is focused on developing tolerance in dry bean.

Work within this project includes conventional plant breeding, advancing material to a true breeding condition and extensive testing for yield, maturity, plant architecture, disease resistance, canning suitability, and seed coat colour. In addition, the work includes the development of bean germplasm that doesn’t darken after harvesting as darkening reduces the commercial value of light coloured beans like cranberry and pinto beans.

Theme: Genetic Improvement
Project Title: Developing herbicide tolerance in dry bean
Funding partners: Manitoba Pulse and Soybean Growers, Ontario Bean Growers and Agriculture and Agri‐Food Canada
Research Team: Dr. Frederic Marsolais – AAFC London; Dr. Peter Pauls – U of Guelph; Dr. Lining Tian – AAFC London

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