Variety Trials Staying competitive in the industry means testing is crucial. Alberta Regional Variety Trials 64 | Advancing Seed in Alberta THE Alberta Regional Variety Testing program (RVT) is the most trusted source of variety information for producers in Alberta. Farmers need accurate, regional and the most current variety information to stay competitive. The Alberta Regional Variety Advisory Committee (ARVAC), the official body that establishes policy for the variety- testing program, takes this responsibility very seriously, and constantly strives to present the data in the most appropriate and understandable manner. According to Alex Fedko, RVT program coordinator and crop research technologist with Alberta Agriculture and Forestry, the goal of the RVT is to provide cereal, flax and pulse crop growers, and industry and extension specialists with scientifically valid crop variety performance information under different agro-climatic conditions. Data is published in the Alberta Seed Guide and in Alberta Agriculture’s Varieties of Cereal and Oilseed Crops for Alberta pamphlet. “There are many sources of variety information for producers,” says Fedko. “However, this program is unique because the data comes from two independent sources: the co-op trials where new crop cultivars are tested before registration and data from post-registration (regional) trials. For example, the spring wheat co-op data that is reported in the Varieties of Cereal and Oilseed Crops for Alberta factsheets includes days to maturity, resistance to lodging, shattering and sprouting, and resistance to five different diseases. It is hard to find a third-party source of information that would have all the relevant material in one package. “Free access to independent variety performance information helps producers to select varieties that perform well in their commercial fields, and also this data is helping seed growers to choose a cultivar that will meet their customers’ needs,” adds Fedko. Accurate Data The RVT program is responsible for generating unbiased post-registration information for varieties of wheat, barley, oat, rye triticale, flax, field pea, chickpea, lentil, dry bean and faba bean. Good field trials are required to generate reliable data, and several quality control steps are in place to achieve this. Fedko annually reviews test protocols with collaborators to detail the conduct of the trials and the expectations. All of the field trials are also inspected; cooperators receive 35 per cent of the plot payment for seeding, but unless the trial passes a July inspection, no further payment is made. Crop specific coordinators, individuals who are experts in the crop, review the raw data prior to analysis. After the data are approved, statistical analysis is performed and measures of variability similar to those used in crop registration trials are used to determine the reliability of the trial prior to entry into the database. Finally, the crop specific coordinators review the tables prior to presentation before the committee, where they are discussed and ultimately approved for publication. “We constantly strive to present the data in the most pertinent and understandable manner. As examples, in recent years we’ve changed the method of yield data presentation, used actual ratings to report disease resistance and added various columns of new information,” notes Fedko. “And finally, Photos Janet Kanters