b'canolaperformance trials and grower directoryCPT uses the Western Canada Canola/Rapeseed Recommendingfrom two test locations, one with a CV of four per cent and Committee (WCC/RRC) season zones, which are based onthe other with a CV of eight per cent, the test with the CV of typical frost-free days, growing degree days and soil type. Greyfour per cent can be considered more reliable. There is always wooded soils, for example, are in the short season zone. Seevariability in research trials. The key is designing and managing Table A for specific numbers for each zone and the map for aexperiments, so CVs stay within a reasonable range. For the depiction.CPT, experience has shown that CVs below 15 per cent indicate good test reliability. Table A: Season Zones LSDThe least significant difference (LSD at a five per Season Frost Free Days Growing Degree Days (Base 5C) cent level of statistical significance) for each dataset indicates Short 75-95 1,100-1,450 whether differences between varieties are statistically meaningful. Varieties should only be considered different in Medium 95-115 1,450-1,700 yield performance if the numerical difference between them is Long 115+ 1,700+ greater than the LSD value. *On a base 5C scale, growing degree days only accumulate on days when highs are above 5C Using the sample table below, if the LSD is 5.0, varieties A and B are not statistically different, B and C are not statistically Small plot data is presented separately in the following tables.different, but A and C are statistically different. For more detailed performance results, use the online CPT database at canolaperformancetrials.ca.Table A: Season ZonesThe tables include yield, days to maturity, and lodging scoresA 52for each variety.B 54Tools to Help You Make Better Choices C 58CVFor coefficient of variation (CV), the lower the CV value,LSD 5.0the more reliable the test. For example, if comparing results 2023 Seed VarietiesAAC Brandon HRS WheatAAC Viewfield HRS WheatAAC Penhold CPS WheatCS Accelerate CPS WheatCS Camden OatsCanmore BarleySirish BarleyEsma Barley*Other Varieties Available Upon Request*Contact Wetaskiwin Co-op Agro780-352-3359I1-888-352-NPKSOur GROW Team is available to assist with all of your farms needsSoil Sampling l Crop Planning l Field ScoutingCrop Protection l Nutrient Planning & Management3702 47th StWetaskiwin ABT9A [email protected] 2023 103'