Section 74-03-07-03 - Field standards1. A portion of the field may be accepted for certification if the boundary is well defined. 2. Fields should be rogued before blooming and before inspection is made to remove other species, off-type plants, and weeds, the seeds of which are difficult to separate in cleaning. 3. A seed field to be eligible for the production of foundation, registered, or certified seed must be isolated from any other strain or strains of the same species in bloom at the same time in accordance with the requirements given in the following table: | Minimum Isolation Distance Required (Feet) |
| Type | Foundation | Registered | Certified |
| All cross-pollinated species | C | 1,320 | 660 | 330 |
| Entirely apomictic strains | A | 165 | 165 | 82.5 |
| Highly self-fertile species | S | 165 | 165 | 82.5 |
4. Specific requirements. The maximum field tolerance for other varieties and off-type plants of the same species, when recognized, shall be as follows: | Foundation | 0.1 percent |
| Registered | 0.5 percent |
| Certified | 1.0 percent |
N.D. Admin Code 74-03-07-03
Amended effective May 1, 1986; May 1, 1988; July 1, 2010.General Authority: NDCC 4.1-53-11
Law Implemented: NDCC 4.1-53-11, 4.1-53-42