Field standards.

74-03-11-03. Field standards. Factor Hybrid Production Open Pollinated Varieties A, B, or R Seed Parent Pollen Parent Pollen shedding female plants (Maximum) 1:1,000* 5:1,000 Branched wild-types 1:1,000 1:1,000 1:1,000 Purple plants ** 1:1,000 1:1,000 1:1,000 White seeded plants 1:1,000 1:1,000 1:1,000 Total including above (maximum) 5:1,000 4:1,000 4:1,000 4:1,000 Isolation (minimum) ** 5,280 feet 5,280 feet 5,280 feet 5,280 feet Corn plants bearing seed none none none none *Standard applies only to A-line. **Must be isolated from other varieties, strains, hybrids, volunteer sunflower, noncertified crops of the same variety, and hybrid and wild Helianthus species. History: Amended effective May 1, 1986; May 1, 1988; January 2, 2006; July 1, 2020. General Authority: NDCC 4.1-52-10 Law Implemented: NDCC 4.1-52-10, 4.1-53-42