N.D. Admin Code 74-03-14-01 - General requirements

The following genetic standards are applicable for the production of parental lines and hybrids of wheat and rye produced by commingling a cytoplasmic male-sterile seed parent and a fertility restorer line.

1. Eligibility requirements for varieties. Standards applicable to wheat and rye 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, 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.

Notes

N.D. Admin Code 74-03-14-01

Adopted by Administrative Rules Supplement 369, July 2018, effective 7/1/2018. Amended by Administrative Rules Supplement 2020-377, July 2020, effective 7/1/2020.

General Authority: NDCC 4.1-52-10

Law Implemented: NDCC 4.1-52-10, 4.1-53-42