Some spot treatment of Canada thistle with glyphosate. For seed yield, stalks were threshed using Hege combined. In general, the later flowering varieties were taller and yielded considerably higher, since they had an extra eight days of growth. If high quality fibre production is the objective, clearly the late varieties are preferred from a productivity perspective. However, the issue of relative fibre quality among these varieties has yet to be explored, and analyses are pending in cooperation with the Department of Clothing and Textiles of the University of Manitoba.
Further trials are necessary to determine optimum seeding rate for fibre production in Manitoba.
Seed Trial Low key market and economic feasibility studies suggest that growing hemp as an oilseed crop may have the most potential for Manitoba. Therefore, we conducted a variety trial aimed specifically at evaluating several varieties for their seed production. Note that these varieties have been bred as fibre producers and are not particularly prolific seed producers. However, varieties bred as seed producers are not readily available. Considering the late sowing, seed yields were excellent, with the French varieties Fedora 19 and Felina 34 exhibiting by far the highest yields.