Agriculture Reference
In-Depth Information
Table 3.1. Recommended submitted and working sample sizes for different species and dividing
methods.
Size of sample in grams
Type of Seed
Subdividing Method/Divider
Submitted
Sample
1
Working
Sample
1
Small-seeded grasses
Bentgrasses (
Agrostis
spp.)
25
0.25
Gamet
Bluegrasses (
Poa
spp.)
25
0.5-1
Gamet (commonly)
Timothy
(Phleum pratense
)
25
1
Gamet or Boerner
Small-seeded legumes
Alfalfa (
Medicago sativa
)
50
5
Gamet or Boerner
Red clover (
Trifolium pratense
)
50
5
Gamet or Boerner
Lespedeza (
Lespedeza
spp.)
30
5
Gamet or Boerner
Small grains
Wheat (
Triticum aestivum
)
1000
120
Gamet
Barley (
Hordeum vulgare
)
1000
120
Gamet
Chaffy grasses
Side-oats grama
(
Bouteloua curtipendula
)
60
6
Pie method or Rifle
Meadow foxtail
(
Alopecurus pratensis
)
30
3
Pie method or Rifle
Medium-sized grasses
Tall fescue (
Festuca
arundinacea
)
50
5
Gamet
Orchardgrass (
Dactylis glomerata
)
30
3
Gamet
Ryegrass (
Lolium
spp.)
60
6
Gamet
Wheatgrasses
(
Agropyron cristatum
)
40
4
Gamet
Wildrye (
Elymus
spp.)
60
6
Gamet
Others
Proso millet (
Panicum maximum
)
25
2
Gamet
Sudangrass (
Sorghum bicolor
)
500
30
Gamet
Large-seeded legumes
Field beans (
Phaseolus vulgaris
)
1000
700
Gamet or Boerner
Field peas (
Pisum sativum
)
1000
900
Gamet or Boerner
Soybeans (
Glycine max
)
1000
500
Gamet or Boerner
Vetches (
Vicia
spp.)
1000
120
Gamet or Boerner
1
Adapted from Table 2A, ISTA Rules, 2009. For submitted and working sample sizes of other species, refer
to Table 2A in ISTA Rules or Table 2A in the AOSA Rules. Where weight is not given, the submitted sample
must contain a minimum of 25,000 seeds.
