Seed standards

Standards for Each Class Factor Foundation Registered Certified Pure seed (minimum) 99.0 percent 99.0 percent 98.0 percent Total weed seeds (maximum) .01 percent .01 percent .04 percent Total other crop seeds (maximum) .01 percent .01 percent .04 percent Other varieties (maximum) .01 percent .01 percent .02 percent Other kinds (maximum) .01 percent .01 percent .02 percent Inert matter 1.0 percent 1.0 percent 2.0 percent Prohibited noxious weed seeds none none none Objectionable weed seeds * none 1 per pound 3 per pound Germination 70.0 percent 70.0 percent 70.0 percent *Objectionable weed seeds are dodder, wild oats, quackgrass, hedge bindweed (wild morning glory), nightflowering catchfly, giant foxtail, hoary alyssum, wild radish, wild vetch species, buckhorn plantain, and horsenettle.