Minimum sample sizes (grams) and days of Germination

Call 605-688-4589 for crops not listed.

453.6 grams = 1 lb (28.35 grams = 1 ounce)

Sample sizes and germination
Crop	Purity	Noxious weed*	Germination days**
Alfalfa	5	50	7
Barley	100	500	7
Beet, field	50	500	10-14
Bluegrass, Kentucky	1	10	21
Bluestem, big	7	70	14
Bluestem, little	5	50	14
Brome, smooth	7	70	14
Buckwheat	50	500	6
Chickpea	500	500	7
Clover, crimson	10	100	7
Clover, red	5	50	7
Corn, field/popcorn	500	500	7
Cowpea	300	500	8
Fescue, red & creeping red	3	30	21
Fescue, tall	5	50	14
Flax	15	150	7
Indiangrass	7	70	14
Lentil	120	500	10
Milkweed (showy)	16	160	21
Millet, foxtail	5	50	10
Millet, proso	15	150	7
Oats	75	500	7
Orchardgrass	3	30	21
Pea, field/forage	500	500	8
Radish	30	300	6
Rye	75	500	7
Ryegrass	5	50	14
Sideoats	6	60	14
Sorghum	50	500	7
Soybean	500	500	7
Sunflower	100	500	7
Switchgrass	4	40	14
Triticale	100	500	7
Vetch, common	150	500	10
Wheat	100	500	7
Wheatgrass tall/intermediate/pubescent	15	150	21-28

* Our lab performs purity and noxious tests as separate tests.

** Prechill may be required on newly harvested crops or native species, which will extend test time.