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Nevada Administrative Code (Last Updated: January 6, 2015) |
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Chapter587 Agricultural Products and Seeds |
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STANDARDS FOR CERTIFICATION OF GRASS SEED |
NAC587.329. Minimum standards for classes of grass seed.
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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%
Indian Ricegrass
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)