Canola is a crop associated with large seed losses before and at harvest, including from pod shatter and pod drop. Researchers conducted a three-year study to develop and refine a method for measuring pod-retention resistance.
Although outbreaks are sporadic, the bertha armyworm continues to be an economically significant pest of canola in western Canada.
Sclerotinia stem rot causes significant yield loss for canola in western Canada each year; however, the impact to individual fields varies dramatically depending on specific environmental and weather conditions.
Sulfur (S) fertilizers have become an important part of the fertilizer mix for Saskatchewan growers, not only for canola, but also for pulse and cereal crops. The overall objective of this study was to evaluate the effectiveness of different fertilizer forms as sources of plant available S to crops.
Clubroot, resulting from an infection by Plasmodiophora brassicae is a devastating disease of canola. Researchers initiated a five-year study in 2010 to investigate the cellular and molecular mechanisms of P. brassicae infection, and to develop molecular markers and tools for utilizing pathogen protein targets for improved resistance to clubroot disease in canola.
In western Canada, field surveys are showing an increased presence of two species of cleavers, which are difficult to control in many crops such as canola.
Clubroot, caused by Plasmodiophora brassicae, is a destructive soilborne disease that is now prevalent on canola (Brassica napus) in central Alberta and appears to be spreading to other regions of the Prairies.
Genetic resistance to blackleg in canola varieties has been widely used in disease control. However, breakdown of host genetic resistance due to population shifts and the emergence of new races of the pathogen is a growing concern.
Blackleg, caused by Leptosphaeria maculans, used to be the most widespread fungal disease of canola in western Canada. The disease was well controlled for many years with resistant canola cultivars and extended crop rotation, but has increased noticeably in recent years.
For canola growers, the establishment of an adequate and even plant stand is essential to reaching yield potential. A three-year study was conducted in Saskatchewan from 2012 to 2014 to determine if the SeedMaster UltraPro canola roller can produce more uniform canola seed placement than conventional fluted rollers.
A four-year, multiple location study was initiated in Saskatchewan in 2011 to provide information on the overall risk of environmental yield loss in straight-combined canola, and to quantify genetic differences in Brassica napus seed losses due to pod drop and pod shattering.
Clubroot, caused by the pathogen Plasmodiophora brassicae (Pb) can be a devastating disease to canola crops. Since 2009, resistant canola cultivars have been available in Canada but all of them are based on a single dominant R gene.
