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Variety Trials in the BC Peace 2000-2003Variety Trials
Weather Data
Background Information to Variety Trials ReportsThese reports summarize the agronomic trials conducted by the Research Committee of the BC Grain Producers Association. When looking at the trials it is important to also look at the weather data for that year. Without adequate moisture, the crop may not have been able to take full advantage of the higher rates of fertilizer. Test plot yields are significantly higher than field scale results due in part to higher than average fertilizer inputs and management. Coefficient of Variation % (CV % )The Coefficient of Variation % indicates the fair comparison between varieties and the uniformity of a test. Agriculture and Agri-Food Canada and Alberta Agriculture have determined a maximum value of 15% for cereals, 18% for peas and 20% for canola. Any data which has a higher value than the maximum CV is usually discarded. Least Significant Difference (LSD)The Least Significant Difference or range test indicates whether entry results are significantly different statistically. Entry means followed by a common letter are not significantly different at alpha =.10. For More InformationKerry Clark, Crop Protection Specialist Clair Langlois
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