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Processing Reduces Seed Germination and Emergence of Jointed Goatgrass

D.J. Lyon and I.G. Rush
1993 J. Prod. Agric. 6: 395-398

Winter wheat (Triticum aestivum L.) grain contaminated with jointed goatgrass (Aegilops cylindrica Host.) Joints is often discounted and may be rejected by grain purchasers. Alternatively, the grain may be fed to cattle (Bos taurus L.). The objective of this research was to determine if feed-mill processing of jointed goatgrass joints would reduce seed germination and emergence and prevent dissemination of this troublesome weed when fed to cattle. A roller mill and hammer mill were used to coarse- and fine-grind the joints. Germination and emergence were reduced, but not eliminated, by processing alone. Seed from jointed goatgrass joints fine-ground with a hammer mill and placed in the rumen of a fistualted steer for 24 h did not germinate. The hammer mill may be used to reduce the risk of disseminating jointed goatgrass when the milled jointed goatgrass-contaminated wheat is fed to cattle.