Mich. Admin. Code R. 285.623.208

Current through Vol. 24-24, January 15, 2025

Section R. 285.623.208 - Crownvetch

Rule 208.

(1) Crownvetch seed shall be planted on land on which the same crop has not been previously grown for a minimum of 5 years for producing foundation seed and 2 years for producing certified seed. During the year immediately before seeding, the land shall have been in a cultivated crop or fallow and shall be free of volunteer crownvetch plants as determined by field inspection. Manure or other contaminating amendments shall not be applied during the established and productive life of the stand.

(2) Any portion of a field that is not to be inspected shall be mowed before flowering.

(3) Limitations on the age of stand and pedigree classes of seed through which a variety may be multiplied shall be specified by the originator, but shall not exceed the limitations that are established by the certifying agency.

(4) Field standards for crownvetch seed are as follows:

Classes of Seed Foundation
Certified	Less than or more		Less than or more
Factor	5 acres	5 acres	5 acres	5 acres
Other varieties or off-types (maximum)	1 plant per acre	1 plant per acre	5 plants per acre	5 plants per acre
Sweet clover (maximum)	none	none	1 plant per acre	1 plant per acre
Isolation from flowering plants of other varieties or uninspected plants (minimum)	900 feet	600 feet	330 feet	165 feet
Isolation between different seed classes of the same variety (minimum)	225 feet	150 feet	85 feet	45 feet

(5) Seed standards for crownvetch seed are as follows:

Classes of Seed
Factor	Foundation	Certified
Pure seed (minimum)	98.0%	98.0%
Inert matter (maximum)	2.0%	2.0%
Weeds (maximum)	0.5%	0.1%
Prohibited noxious (maximum)	none	none
Restricted noxious (maximum)	27 per pound	45 per pound
Other crops (maximum)	0.2%	1.0%
Sweet clover (maximum)	9 per pound	45 per pound
Other varieties or off-types (maximum)	0.1%	1.0%
Germination (minimum)		65.0%
Germination less hard seed (minimum)		35.0%

Mich. Admin. Code R. 285.623.208

1994 AACS