Sec. 116.5. Seed standards

Standards for each class
Factor	Foundation	Registered	Certified
Pure seed (minimum)	99.00%	99.00%	99.00%
Inert matter (maximum)	1.00%	1.00%	1.00%
Weed seeds (maximum)	0.10%	0.20%	0.50%
Noxious weed seeds (maximum)	none	none	none
Objectional weed seeds (maximum)	none	none	27 per lb.
Other crop seeds
Other kinds (maximum)	0.10%	0.10%	0.50%
Germination and hard seed (minimum)	80.00%	80.00%	80.00%

1

Noxious weed seeds shall include the following: bindweed (Convolvulus arvensis), Quackgrass (Agropyron repens), Canada Thistle (Cersium arvense), bedstraw (Galium spp.), dodder (Cuscuta spp.), horsenettle (Solanum carolinense), wild onion (Agrostemma githago), and Russian knapweed (Centaurea repens).

2

Objectionable weed seeds shall include the following: dogbane (Apocynum cannabinum), Johnson grass (Sorghum halepense), leafy spurge (Euphorbia esula), perennial sow thistle (Sonchus arvensis), and white top (Lepidium draba, L. repens, Hymenaphysa pubescens).

3

Sweet clover seed shall not exceed nine per pound for foundation seed; 90 per pound for registered seed; and 180 per pound for certified seed.

Notation

1

Noxious weed seeds shall include the following: bindweed (Convolvulus arvensis), Quackgrass (Agropyron repens), Canada Thistle (Cersium arvense), bedstraw (Galium spp.), dodder (Cuscuta spp.), horsenettle (Solanum carolinense), wild onion (Agrostemma githago), and Russian knapweed (Centaurea repens).

2

Objectionable weed seeds shall include the following: dogbane (Apocynum cannabinum), Johnson grass (Sorghum halepense), leafy spurge (Euphorbia esula), perennial sow thistle (Sonchus arvensis), and white top (Lepidium draba, L. repens, Hymenaphysa pubescens).

3

Sweet clover seed shall not exceed nine per pound for foundation seed; 90 per pound for registered seed; and 180 per pound for certified seed.