Cotton
Land Requirements
Land to be used for the production of Foundation, Registered and Certified cotton seed must be free from volunteer cotton plants.
Field Inspection
At least one inspection shall be made after blooming starts, preferably after some bolls are open.
Field Standards
General Requirements
Unit of Certification
The unit of certification shall be a field, but a portion of a field may be certified provided precautions can be taken to prevent contamination from the portion not certified.
Isolation
For Upland type cotton the isolation distance shall be a natural barrier or crop boundary,
except minimum isolation shall be 100 feet if the contaminating source
differs by easily observed morphological characteristics from the field to be inspected.
For Egyptian type cotton the isolation shall be 1320 feet from any other type of cotton for Foundation and Registered and 660 feet for Certified seed.
Specific Requirements
| Factor | Maximum permitted Ratio of plants: Foundation | Maximum permitted Ratio of plants: Registered | Maximum permitted Ratio of plant: Certified |
|---|---|---|---|
| Other varieties:Variety | None | 1:35,000 | 1:7,000 |
Referee Sample
A representative two-pound sample of the seed as it is to be sold shall be submitted to the Association for laboratory analysis.
Seed Standards
Specific Seed Standards
| Factor | Standards for each class: Foundation | Standards for each class: Registered | Standards for each class: Certified |
|---|---|---|---|
| Pure seed (minimum) | 98.50% | 98.50% | 98.50% |
| Inert matter (maximum) | 1.50% | 1.50% | 1.50% |
| Objectionable weeds (maximum) 1 |
None | None | 1 seed per 2 lb. |
| Prohibited weeds (maximum) 2 | None | None | None |
| Other kinds including other varieties (maximum) | None | None | None |
| Germination (maximum) | 80.00% | 80.00% | 80.00% |
1Cocklebur (Xanthium spp.), Sandbur (Cenchrus pauciflorus).
2See Section XLI P.