Samples
Your test results are only as good as the sample submitted to the lab. It is important to follow proper sampling procedures and provide the lab with a representative sample of the seed lot.
Bulk bins
Obtain 5 to 7 random sub-samples from several areas of the bin using a seed probe which can reach all areas of the bin. Thoroughly mix the probed seed and divide it down to the amount of seed required by the seed lab.
Bagged seed
Randomly sample 5 bags plus 10% of the total number of bags. Regardless of lot size, it is not necessary to sample more than 30 bags. Once the bags have been probed, thoroughly mix the seed drawn from the bags and divide it down to the amount required by the seed lab.
This is a brief list of sample sizes and germination dates for samples we process in the lab. If you don't see a crop you're looking for, visit or contact the lab.
| Purity (g) | Noxious (g) | TZ/Germ (g) | Germination Dates | |
| 453.6 grams = 1 pound | ||||
| Alfalfa | 5 | 50 | 2.5 | 7 |
| *Coated Alfalfa | 8 | 80 | 5 | 7 |
| Bean | 500 | 500 | 200 | 8 |
| *Canadian test requires 1,000 grams | ||||
| Bentgrass | 0.25 | 2.5 | 0.25 | 28 |
| Bitterbrush | 70 | 500 | 35 | 7 |
| Bluegrass | 1.2 | 12 | 1.2 | 14-28 |
| Brome, California | 15 | 150 | 7.5 | 14 |
| Brome, meadow | 14 | 140 | 7 | 14 |
| Brome, mountain | 20 | 200 | 10 | 14 |
| Brome, smooth | 7 | 70 | 3.5 | 14 |
| Cereals | 100 | 500 | 50 | 7 |
|
*Please indicate on submission form if you require a larger noxious exam. (Ex. Idaho certified cereals - 1,000 grams) *New crop requires a 5-day pre-chill + 7 day germ |
||||
| Clover | 10 | 100 | 4 | 10 |
| Fescue | 5 | 50 | 2.5 | 14-21 |
| Foxtail, creeping | 1.5 | 15 | 1 | 21 |
| Foxtail, meadow | 3 | 30 | 1.5 | 14 |
| Globemallow | 6 | 60 | 3 | 28 |
| Grama, side-oats | 6 | 60 | 3 | 14 |
| Kochia, forage | 2 | 20 | 1 | 7 |
| Lupine | 50 | 500 | 25 | 18 |
| Milkvetch | 9 | 90 | 4.5 | 21 |
| Needlegrass | 7 | 70 | 3.5 | 21 |
| Orchardgrass | 3 | 30 | 1.5 | 21 |
| Pea | 500 | 500 | 200 | 8 |
| Ryegrass | 5 | 50 | 2.5 | 14 |
| Saltbush | 19 | 190 | 8.5 | 21 |
| Sagebrush | 1.2 | 12 | 1 | 14 |
| Vetch | 150 | 500 | 25 | 14 |
| Winterfat | 12 | 120 | 6 | 14 |
| Wheatgrass, bluebunch | 8 | 80 | 4 | 14 |
| Wheatgrass, crested | 5 | 50 | 2.5 | 14 |
| Wheatgrass, green | 9 | 90 | 4.5 | 14 |
| Wheatgrass, intermediate | 15 | 150 | 7.5 | 28 |
| Wheatgrass, western | 10 | 100 | 5 | 28 |
Place seed into a tightly sealed container. Many use zip-lock bags, cloth bags, or heavy-stock envelopes. Include the following with the sample or print the Sample Submission Form (pdf).
- Name and address
- Phone number
- Cell number (if available)
- E-mail address
- Kind and variety (or VNS)
- Lot number
- Any other information you would like on the report, such as a grower name
- Type of tests requested
- Treatment – please indicate kind of seed treatment used if applicable
- The year the seed was grown or harvested
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