Verticillium stripe is an important vascular disease of canola caused by the soilborne fungus Verticillium longisporum. This disease was well established in Europe decades ago and has subsequently been reported in other major oilseed growing regions.

Past research clearly shown that management practices such as no-till have led to an increase in soil organic carbon (SOC) stocks in the Canadian Prairies.

SKSIS launched in 2018 with the goal of making quality soil information accessible to Saskatchewan producers, agrologists, researchers, land managers, and policy makers.

Researchers had a couple of objectives to complete during this project; the first was to identify readily applied diagnostic features for mapping small patch clubroot distributions using hyperspectral data, and to develop a diagnostic tool. Second, they wanted to refine and validate the diagnostic tool for identifying small patches of clubroot infestations.

Canola plays a significant role in carbon sequestration given the deep rooting nature of the crop. Priority 1 activities will concentrate on methods to further increase carbon sequestration, while  reducing greenhouse gas emissions from fertilizer and dairy-associated methane emissions. Projects  will evaluate strategies to increase nitrogen use efficiency and improve nitrogen management and  methods to inform fertilizer rate recommendations.

Canola meal is a concentrated source of protein and has well-balanced amino acid composition especially methionine. Globally canola meal is the second most common source protein source used in animal diets with soybean meal being the most common. In western Canada, most of the soybean meal is imported and therefore costly. Canola meal has lower metabolizable energy than soybean meal limiting its use in some higher-density diets necessitating producers to use soybean meal despite its high cost.

Conventional canola oil and the high oleic (HO) specialty oils are high quality vegetable oils very well suited for human consumption, food preparation and biofuel production. They offer the lowest saturated fatty acid content of any commodity oil with total saturate levels ranging from 7% to as low as 4.5% in some “Low Sat HO” varieties.

Kochia has grown to be one of the worst agricultural weed problems on the southern Canadian Prairies where its impact on crop production has been exacerbated by warm dry summers over the past half decade. Kochia is a tumbleweed that thrives in conditions of drought, salinity, and heat stress, allowing it to compete with crops for essential resources, resulting in substantial crop yield losses.

Canola seed processing in Canada is currently optimized to obtain high quality canola oil for the vegetable oil market, while the canola meal co-product primarily goes into the livestock feed market.

Aster leafhoppers and diamondback moths migrate to the Canadian Prairies in spring and early summer on wind currents originating in the USA. Infestations of these insects are tied to migration on the winds since neither of these insects overwinters well in cold Canadian winters.

Verticillium longisporum is a soil-borne fungal pathogen that can infect a range of host plants, such as horseradish, canola, cabbage, and cauliflower. In canola, the fungus enters the plant through the roots and colonizes the vascular system, causing verticillium stripe (VS) disease.

Effective weed management is critical to maximizing harvest efficiency and yield potential for producers and this is achieved by the application of efficacious herbicides. These herbicides have become a victim of their own success, as the selection pressure they apply to control weed populations inevitably leads to the evolution of herbicide resistance within those populations.

Current commercial soil testing relies upon physically removing soil from fields and shipping it to centralized labs for analysis through wet chemistry. The soil is shipped, dried, sifted and then analyzed through chemical treatment.

Canola production is threatened by various diseases. Two of such disease are blackleg (BL) and Verticillium stripe (VS). Yield loss due to blackleg is estimated at 17.2% per every unit increase in disease severity.

Sclerotinia sclerotiorum, which causes Sclerotinia Stem Rot (SSR) or white mold diseases, is a devasting necrotrophic pathogen that infects a broad range of plant species, including soybean, cotton, sunflower, and canola. Sclerotinia stem rot disease is a major disease distributed across major canola/rapeseed/oilseed rape growing regions. This soil-borne disease is one of the major diseases in canola-growing regions in Canada.

The escalating frequency of drought conditions in the prairies is anticipated to exacerbate the prevalence and severity of Verticillium stripe disease. As a result, the threat posed by Verticillium stripe disease looms larger over canola production in the Canadian Prairies, necessitating diligent monitoring and proactive management strategies to safeguard crop yields and economic sustainability. Therefore, it is imperative to gain a comprehensive understanding of the genetic diversity and population structure of V. longisporum lineages prevalent in the prairies.

About 2 million metric tonnes of spent bleaching/filtration earths from vegetable oil refining are produced worldwide every year. The canola crush oil processing industry in western Canada creates significant amounts of spent bentonite- based filtration earth from the crushing of 10 million tonnes of canola. New crush facilities being built or expansion of crush capabilities by companies including Viterra, Richardson, Cargill, and others will increase the amount of spent filtration earth produced as a by-product of the crush industry. The spent bleaching/filtration earth material left from vegetable oil refining has traditionally been disposed of in landfills, but this is an undesirable and expensive practice, and many landfills will no longer accept bleaching earth from vegetable oil refining. The high oil content of the material when stockpiled in one place can lead to problems with spontaneous combustion. Recycling through extraction and production of biodiesel from the oil left behind in the clay, making briquettes or clay tiles, among other industrial uses, have been proposed as alternative uses for the material.

Access to genetic diversity is key to the success of crop breeding programs and, in this regard, the canola gene pool is particularly limited. This is due to the natural history of amphidiploid Brassica napus (AACC) being formed from an interspecific hybridization event between its diploid progenitor species B. rapa (A genome) and B. oleracea (C genome). This hybridization event(s) occurred recently (ca. 2000 years ago) meaning that there has been limited time for mutations and introgressions to occur and natural selection to increase the frequency of alleles required for further crop improvement. Canola breeders use a range of strategies to overcome this deficiency including mutagenesis, wide genetic crosses and crosses involving wild relatives.

Plasmodiophora brassicae is an obligate pathogen so must have a host to complete its life cycles and, by definition, cannot be grown in pure culture. The pathogen lives within the cells of its host throughout most its life cycle. Resting spores are produced in infected roots and are released into the soil as the roots decay. These represent the only source of pure pathogen available. However, when trying to get ‘clean’ cells for sequencing and other research, the P. brassicae material is generally contaminated with genes from plants and soil microbes which causes problems. A method to grow pure cultures of cells of P. brassicae, outside of the host, would be very useful for many types of research, and especially as a tool for selecting clubroot resistant canola lines, and advancing breeding canola for clubroot resistance.

Although planting resistant canola varieties is the primary approach for clubroot management, a growing number of clubroot pathotypes has emerged in recent years that can overcome host resistance, posing a significant challenge for growers. As such, it is critical to identify novel sources of resistance that are effective against these emerging strains of the pathogen. The identification of and breeding for resistance relies on testing host lines by inoculating them with the most prevalent and/or significant clubroot pathotypes on the Prairies.