Effects of Heating and Storage on the Viability of Grass Seed Harvested with High Moisture Content1

Synopsis Seed harvested by the windrow method germinated the same regardless of moisture levels at harvest and was consistently superior in germination to that of direct‐combined seed. Seed combined at less than 25% moisture did not heat appreciably in storage and there was no loss in germination as a result of immediate heating. Delta Kentucky bluegrass seed harvested at more than 22% moisture and Manchar smooth bromegrass seed harvested at more than 24% moisture had a lower germination when stored in bags for 2 weeks after harvest.