Seed standards

A variety identification test is required for A-, B-, and R-lines of wheat. A hybridity test is required on hybrid seed. A seed count is required on all hybrids. Standards for Each Class A-, B-, and R-Lines Commercial Hybrid Factor Foundation Certified Pure seed (minimum) * 99.0 percent 99.0 percent Hybridity (minimum) ** N/A 75.0 percent Total weed seeds (maximum) 0.10 percent 0.10 percent Other varieties *** 0.005 percent 0.05 percent Other crop seeds (maximum) 0.01 percent 0.08 percent Inert matter (maximum) **** 1.0 percent 1.0 percent Prohibited noxious weed seeds none none Germination ***** 85.0 percent 85.0 percent *Pure seed minimum for rye is 98.0 percent. **Hybridity will be determined by an acceptable method and test results shall be submitted to the agency with a declaration of the hybridity prior to final certification of each lot of spring cereals and within one hundred sixty days of harvest for winter cereals. ***Other varieties include plants that can be differentiated from the variety being inspected, but may not include variants that are characteristic of the variety. ****Inert matter may not include more than 0.5 percent of material other than seed fragments of the variety under consideration. Maximum inert matter for rye is 2.0 percent. *****Minimum germination for rye is 80.0 percent.