Seed Dormancy
Some plant species have seeds that delay germination for several weeks to many months. This phenomenon, known as seed dormancy, is a condition that prevents seed germination under normal environmental conditions. Seed dormancy is especially prevalent in small grain seed. Seed dormancy influencing field emergence is variable and not easily predictable. There are three major factors that affect seed dormancy.
1. Time
2. Variety
3. Environment
Due to dormancy, small grain seed may not germinate properly when planted immediately after harvest. This is especially problematic when fall planting of recent harvest. In particular the oat species requires time to overcome its dormancy period. Furthermore, different oat varieties exhibit varying potential for seed dormancy. Environmental factors such as soil moisture and soil temperature also affect seed germination. To have proper germination, oat seed grows best when planted under cooler temperatures of either spring or late summer. Planting during the Wisconsin mid-summer heat may cause slow or improper germination. To minimize the effect of seed dormancy, consideration should be given to planting dates which allow as much time as possible between seed harvest and planting while providing the probability of lower soil temperatures.
Some small grain species have seeds that delay germination for several weeks to many months. This phenomenon, known as seed dormancy, prevents seed germination under normal conditions. Seed dormancy is variable and is influenced by variety, environment, and time.
I also would love to show people the difference .1% weed seed means verses 1% weed seed.
There are huge differences in oat vareties and yield. It is like planting corn. Think open pollinated $80 a bag corn will yield 200-250 bushel per acre like some of the top hybrids? Corn isn't corn and oats aren't oats. Plus what happens when one has 2-3 varieties in a field? The answer is in one of the articles below.
http://osufacts.okstate.edu/docushare/dsweb/Get/Document-8672/PSS-2160.pdf
http://www.co.yellowstone.mt.gov/extension/ag/pubs/Oats.pdf
I could go on and on but i'd never plant any grains with less than 85% germ count. For those who still think i'm blowing smoke, here is what you do. Buy a 50 lb bag of oats from the mill and take out 100 seeds, plant them and count how many germinate....you will have your answer. I'd never plant anything tht I didn't know what was the germ count. What happens when one plants untested seed in early august in the Midwest and you discover 2-3 weeks later the seed isn't growing well or at all? By the time you replant, your margin of success is close to nill and in some cases there is no back up plan.