Seed treatments for improving fall seeding survival of crucifers

摘要

Seeds of Brassica's and related species (Crucifers), having increased dormancy coupled with greater tolerance to stresses associated with fall seeding in long winter climates, are produced by treatment with solutions of sugars and/or polyols, for a specified period, typically 10 to 70 h at room termperature, followed by air drying to ambient moisture content. Dormancy is generally released on overwintering, moist chilling or hydration-dehydration-dehydration or as a function of increasing temperature or time or a combination of the preceding. Treated seeds afford better emergence over a larger seeding window for fall sown seeds of Brassicas and related species thus increasing the attractiveness of this practice for these crops.