ProCrop

Seeding Rates for Hull-Less Oats

Paul oats is a hull-less oat variety released from NDSU in 1994. The hulls (lemma and palea) are removed at harvest, leaving only the groat. Paul is a very tall, strong strawed, late maturing oat variety with excellent disease resistance. Paul has yielded approximately 30% of normal hulled varieties.

Seeding rates for Paul oats is different than for normal oat varieties. Usually hull-less varieties will have a lower germination. Adjusting the seeding rate for germination is very important. The recommended seeding rate for normal oat varieties is one million live seed per acre which is approximately 60 to 75 lbs/A having 15,000 to 17,000 seeds per pound. In comparison, Paul oats will have significantly smaller seed size, typically having 18,000 - 21,000 seeds per pound. The seeding rate for Paul oats at one million live seed per acre is equivalent to 45 to 55 pounds to the acre.

Paul oats can be seeded at 45 to 55 pounds to the acre, but seeding 60 -70 pounds to the acre is recommended. Also, a seed treatment that protects against seeding blight fungi is recommended.

A seeding rate study with Paul oats was conducted in 1992 at the North Central Research/Extension Center in 1992 (Table 1). There were no differences in yield between 47 and 90 pounds to the acre. Test weight and protein was higher with the 70 pound seeding rate verses the 47 pound seeding rate.

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