Small Grain - Oats, Barley, Rye & Triticale
Land Requirements
Small grains (oats, barley, rye and triticale) intended for certification shall not be grown on land which produced a small grain crop of the same kind the previous year unless the crop was from a certified class of seed of the same variety.
One year must elapse between destruction of a stand of a variety and establishment of a stand of a specific class of a variety of the same kind. Requirement is waived if the previous crop was grown from a certified class of seed of the same variety.
Field Inspection
A field inspection will be made prior to harvest after the grain is fully headed and has assumed a mature color.
Field Standards
General Requirements
Unit of Certification
The unit of certification shall be a field, but a portion of a field may be approved provided the discarded portion can be harvested separately and is eliminated from certification.
Isolation Rye
A field producing any class of certified seed must be isolated by at least 660 feet from rye fields of any other variety of the same chromosome number or uncertified fields of the same variety. Isolation between diploid and tetraploid rye shall be at least 15 feet.
Isolation Barley, Oats and Triticale
Field boundaries must be clearly marked. If boundaries are determined by means other than permanent fixtures (fences, roads, hedges, etc.), such boundary must be no less than 10 feet from a non-certified field of the same variety, another variety or other small grain.
Special Requirements
| Factor | Maximum permitted for each class: Foundation | Maximum permitted for each class: Registered | Maximum permitted for each class: Certified |
|---|---|---|---|
| Other varieties (maximum) | 1:3,000 heads | 1:2,000 heads | 1:1,000 heads |
| Inseparable other crops (maximum)1 |
1:10,000 heads | 1:10,000 heads | 1:2,000 heads |
| Objectionable weeds whose seed are inseparable (maximum) ² | None | None | None |
1Inseparable other crops shall include crop plants, the seed of which cannot be thoroughly
removed by the usual methods of cleaning. Rye in winter wheat and barley in oats are
well known examples.
2Noxious weeds, seed of which are inseparable, must be destroyed by rouging or mowing
before field inspection is made. Fields containing field bindweed shall be rejected
in all cases
Referee Sample
A representative two-pound sample of seed as it is to be sold shall be submitted to the Association for laboratory analysis.
Seed Standards
| Factor Pure seed (minimum) |
Standards for each class: Foundation | Standards for each class: Registered | Standards for each class: Certified |
|---|---|---|---|
| Barley, rye, triticale | 96.00% | 96.00% | 96.00% |
| Oats | 98.00% | 98.00% | 98.00% |
| Inert matter (maximum) |
|||
| Barley, rye, triticale ¹ | 4.00% | 4.00% | 4.00% |
| Oats | 2.00% | 2.00% | 2.00% |
| Weed seed (maximum) |
0.10% | 0.20% | 0.50% |
| Objectionable weeds (maximum) ² |
None | None | None |
| Total other crop seeds (maximum) |
|||
| Barley, rye, triticale | 0.06% | 0.12% | 0.25% |
| Oats | 0.21% | 0.32% | 0.55% |
| Other varieties (maximum) |
|||
| Barley, rye, triticale | 0.05% | 0.10% | 0.20% |
| Oats | 0.20% | 0.30% | 0.50% |
| Other kinds (maximum) ³ |
0.01% | 0.02% | 0.05% |
| Germination (minimum) |
|||
| Wheat, oats, barley, triticale | 85.00% | 85.00% | 85.00% |
| Rye | 80.00% | 80.00% | 80.00% |
| Diseases 4 | - | - | - |
1Barley, rye or triticale shall not contain more than 2 percent inert matter other
than broken seed.
2See Section XLI P, also, Texas blueweed (Helianthus ciliaris), dock (Rumex spp.),
hedge bindweed (Convolvulus sepium), and wild oat (Avena fatua). One seed per pound
maximum allowable for cheat (Bromus secalinus), corncockle (Agrostemma githago), wild
mustard (Brassica kaber), morningglory (Ipomoea spp.), wild buckwheat (Polygonum convolvulus),
horsenettle (Solanum carolinense), and jointed goatgrass (Aegilops cylindrica).
3For other small grains the maximum of 1 per pound in Foundation, 2 per pound in Registered
and 5 per pound in Certified must not be exceeded.
4If chemically controlled seed-borne diseases are noted upon field inspection or laboratory
observation, seed treatment is required.