Seed standards

Standards for Each Class Factor Foundation Registered Certified Pure seed (minimum) 98.0 percent 98.0 percent 98.0 percent Total weed seeds (maximum) none none 3 per pound Other varieties (maximum) * 1 per pound 1 per pound 5 per pound Other crop seeds (maximum) 1 per pound 1 per pound 3 per pound Inert matter (maximum) 2.0 percent 2.0 percent 2.0 percent Objectionable weed seeds ** none none none Prohibited noxious weed seeds none none none Germination (minimum) 85.0 percent 85.0 percent 85.0 percent Sclerotia 5 per pound 5 per pound 5 per pound *To include not more than two purple seeds or two white seeds per pound. Other varieties shall not include variants characteristic of the variety. **Objectionable weed seeds shall include the following: buckhorn plantain, dodder, wild oats, nightflowering catchfly, giant foxtail, hoary alyssum, horsenettle, quackgrass, wild vetch species, wild radish, hedge bindweed (wild morning glory), and nightshade.