Nevada Administrative Code
Chapter 587 - Agricultural Products and Seeds
STANDARDS FOR CERTIFICATION OF GRASS SEED
Section 587.329 - Minimum standards for classes of grass seed
Current through February 27, 2024
1. The following standards for grass seed apply to the foundation and registered classes:
| Species | Type of Repro- duction1 | Percent Pure Seed (Minimum) | Percent Other Crop (Maximum) | Percent Weed Seed (Maximum)2 | Percent Inert Matter (Maximum) | Percent Germination (Minimum) |
| Bluegrass, Kentucky Poa pratensis | C,A | 95% | 0.1 % | 0.3 % | 5% | 75% |
| Bromegrass,Meadow Bromus biebersteinii | C | 95% | 0.1 % | 0.1 % | 5% | 85% |
| Bromegrass,Smooth Bromus inermis subsp. inermis | C | 95% | 0.1 % | 0.1 % | 5% | 85% |
| Fescue,Chewings Festuca rubra subsp. commutata | C | 98% | 0.1 % | 0.1 % | 2% | 85% |
| Fescue, Hard Festuca longifolia | C | 95% | 0.1 % | 0.1 % | 5% | 85% |
| Fescue,Meadow Festuca pratensis | C | 95% | 0.1 % | 0.1 % | 5% | 85% |
| Fescue,Red Festuca rubra subsp. rubra | C | 98% | 0.1 % | 0.1 % | 2% | 85% |
| Fescue,Sheep Festuca ovina | C | 98% | 0.1 % | 0.1 % | 2% | 85% |
| Fescue,Tall Festuca arundinacea | C | 98% | 0.1 % | 0.3 % | 2% | 85% |
| IndianRicegrass Oryzopsis hymenoides | C | 95% | 0.5 % | 0.3 % | 5% | 80% |
| Orchardgrass Dactylis glomerata | C | 90% | 0.1 % | 0.3 % | 5% | 85% |
| Ryegrass Lolium spp. | C | 96% | 0.2 % | 0.2 % | 4% | 85% |
| Timothy Phleum pratense | C | 97% | 0.1 % | 0.1 % | 3% | 80% |
| Wheatgrass,Crested Agropyron cristatum, A. desertorum | C | 95% | 0.1 % | 0.1 % | 5% | 80% |
| Wheatgrass,Intermediate Elytrigia intermedia subsp. intermedia | C | 95% | 0.1 % | 0.1 % | 5% | 80% |
| Wheatgrass,Pubescent Agropyron trichophorum | C | 95% | 0.1 % | 0.1 % | 5% | 80% |
| Wheatgrass,Siberian Agroyron fragile subsp. sibericum | C | 95% | 0.1 % | 0.1 % | 5% | 80% |
| Wheatgrass,Streambank Elymus lanceolatus subsp. lanceolatus | C | 90% | 0.1 % | 0.1 % | 10% | 80% |
| Wheatgrass,Tall Elytrigia elongata | C | 95% | 0.1 % | 0.1 % | 5% | 85% |
| Wildrye,Basin Leymus cinereus | C | 90% | 0.1 % | 0.1 % | 5% | 80% |
| Wildrye,Canada Elymus canadensis | S | 85% | 0.1 % | 0.1 % | 15% | 70% |
| Wildrye,Russian Psathyrostachys juncea | C | 90% | 0.1 % | 0.1 % | 5% | 80% |
2. The following standards for grass seed apply to the certified class:
| Species | Type of Repro- duction1 | Percent Pure Seed (Minimum) | Percent Other Crop (Maximum) | Percent Weed Seed (Maximum)2 | Percent Inert Matter (Maximum) | Percent Germination (Minimum) |
| Bluegrass, Kentucky Poa pratensis3 | C,A | 95% | 0.25 % | 0.30 % | 5% | 75% |
| Bromegrass, Meadow Bromus biebersteinii | C | 95% | 0.5 % | 0.30 % | 5% | 85% |
| Bromegrass, Smooth Bromus inermis | C | 95% | 0.5 % | 0.30 % | 5% | 85% |
| Fescue, chewings Festuca rubra subsp. cummutata | C | 97% | 0.5 % | 0.30 % | 3% | 85% |
| Fescue,Hard Festuca longifolia | C | 97% | 0.5 % | 0.30 % | 3% | 85% |
| Fescue,Meadow Festuca pratensis | C | 97% | 0.5 % | 0.30 % | 3% | 85% |
| Fescue,Red Festuca rubra subsp. rubra | C | 97% | 0.5 % | 0.30 % | 3% | 85% |
| Fescue,Sheep Festuca ovina | C | 98% | 0.5 % | 0.30 % | 2% | 85% |
| Fescue,Tall Festuca arundinacea | C | 98% | 0.5 % | 0.30 % | 2% | 85% |
| Indian Ricegrass Oryzopsis hymenoides | C | 90% | 1.0 % | 0.50 % | 10% | 80% |
| Orchardgrass Dactylis glomerata | C | 90% | 0.5 % | 0.50 % | 10% | 85% |
| Ryegrass Lolium spp. | C | 97% | 0.5 % | 0.50 % | 3% | 85% |
| Timothy Phleum pratense | C | 97% | 0.5 % | 0.30 % | 3% | 80% |
| Wheatgrass, Crested Agropyron cristatum, A. desertorum | C | 95% | 0.5 % | 0.30 % | 5% | 80% |
| Wheatgrass, Intermediate Elytrigia intermedia subsp. intermedia | C | 95% | 0.5 % | 0.30 % | 5% | 80% |
| Wheatgrass, Siberian fragile subsp. sibericum | C | 95% | 0.5 % | 0.30 % | 5% | 80% |
| Wheatgrass,Streambank Elymus lanceolatus subsp. lanceolatus | C | 90% | 0.5 % | 0.30 % | 10% | 80% |
| Wheatgrass,Tall Elytrigia elongata | C | 95% | 0.5 % | 0.30 % | 5% | 85% |
| Wildrye, Basin Leymus cinereus | C | 90% | 0.5 % | 0.30 % | 10% | 80% |
| Wildrye, Canada Elymus canadensis | S | 85% | 0.5 % | 0.30 % | 15% | 70% |
| Wildrye, Russian Psathyrostachys juncea | C | 90% | 0.5 % | 0.30 % | 10% | 80% |
1 Type of reproduction: C = Cross pollinated, S = Self-pollinated, A = Apomictic
2 Noxious weed seed listed in NAC 587.2375 has a zero tolerance in grass crops along with the following: dodder (Cuscuta spp.), wild garlic (Allium vineale) and field bindweed (Convolvulus arvensis). The following weed seeds are permitted with a maximum tolerance of 27 seeds per pound: docks (Rumex spp.) and fanweed (Thlaspi arvense).
3 The variety Merion may contain a minimum of 92 percent pure seed, a maximum of 8 percent inert matter and a maximum of 3 percent other Kentucky bluegrass varieties. Kentucky bluegrass varieties other than Merion may contain a maximum of 2 percent other bluegrass varieties. Canada bluegrass may contain a maximum of 3 percent Kentucky bluegrass.
Added to NAC by Dep't of Agriculture, eff. 12-3-90; A by R174-99, 3-13-2000
NRS 587.077, 587.083
