Section 74-03-14.1-01 - General requirementsThe following genetic standards are applicable for the production of parental lines and hybrids of wheat produced in alternating strips of cytoplasmic male-sterile seed parent and a fertility restorer line.
1.Eligibility requirements for varieties. Standards applicable to wheat varieties apply to the production of pollinator lines.2.Definition of parental types.a.Maintainer (B-line). A line with normal fertile cytoplasm which is used as a pollinator to increase the seed parent.b.Seed parent (A-line). A cytoplasmic male-sterile line (CMS), which is genetically identical to the maintainer line that when pollinated by a restorer, produces hybrid seed.c.Restorer (R-line). Any male fertile line possessing nuclear restoration genes used as a pollinator in the production of commercial hybrid seed.3.Eligible seed classes.a. Only the certified class is recognized in the production of commercial hybrid seed. A commercial hybrid is planted for any use except for seed production. To be certified, a commercial hybrid must be produced from foundation class seed stocks. These seed stocks must consist of male steriles, inbred lines, and/or hybrids.b. Only the foundation class is recognized for parental lines.N.D. Admin Code 74-03-14.1-01
Adopted by Administrative Rules Supplement 2022-385, July 2022, effective 7/1/2022.General Authority: NDCC 4.1-52-10
Law Implemented: NDCC 4.1-52-10, 4.1-53-42