Does anyone have a threshing method for oat seeds?

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Raghad Mouhamad

A mechanical scarification technique that breaks the seed coat-mediated dormancy in wild oat (Avena fatua) by using a commercial thresher. The study found that threshing treatment of 1,500 rpm for 5 s provides equivalent germination compared with manually puncturing individual wild oat seeds.
A method of separating the seed from the chaff by using a series of sieves with different sizes. The method involves stacking the sieves with the largest at the top and the smallest underneath, and pouring the seed and chaff mix into the upper sieve and shaking it around into the smaller sieve. The smaller sieve should collect the seed while the chaff remains in the larger sieve.
A method of winnowing the seed from the chaff by using a tarp and a baking sheet. The method involves placing a tarp on the ground and spreading the seed and chaff mix on it. Then, the tarp is lifted and dropped repeatedly to create air currents that blow away the lighter chaff. Next, a baking sheet is placed on the tarp and the seed is poured slowly onto the baking sheet from a few feet up. The remaining chaff is blown away by the wind or by a fan.
A method of threshing the seed from the straw by using a flail. A flail is a tool that consists of two wooden sticks connected by a chain or a rope. The method involves laying the oat plants on a hard surface and beating them with the flail to separate the seed heads from the stems. The flail can be used manually or with animals or machines.

Maria Vera Jesus Da Costa

Raghad Mouhamad Thank you for the methods. I have tried the commercial thresher and was able to separate the seed from its coat at 1500 rpm for 1 min, however the germination percentage is now below 10%. Reduction in time below 1 min was not good enough to separate the seed from the coat. I will try the other methods. Thank you for the suggestions.