1. A. Field Inspections. Two inspections shall be made of the growing crop, the first at early blooming stage and the second just before harvest. Only one inspection shall be required in the case of open-pollinated varieties.

2. B. Field Standards

   1. 1. Sunflower seed grown for certification shall not be on land that was planted the previous year to sunflower of another variety.
   2. 2. The isolation distance between varieties for all classes shall be at least 2,640 feet.
   3. 3. Flowering. In a crossing field for the production of hybrid sunflower seeds, the male parent must be in bloom and producing pollen at the time the female parent is in bloom. If the female sunflower heads produce pollen before the male parent heads, then the female pollen must be removed to prevent cross-pollination.

   4. 4. Maximum Impurity Tolerances (maximum limits per 1,000 plants)

      Hybrid Production Foundation and Certified	Female Seed Parent	Male Pollinating Parent
      Maximum (including Off-Types)	1	1
      Wild-Type Branching	1	1
      Purple Plants	1	1
      White Seeded	1	0
      Obvious Off-Types	4	4

3. C. Seed Standards

   Factor	Foundation	Registered	Certified
   Pure Seed	99.00%	99.00%	98.00%
   Inert Matter	1.00%	1.00%	2.00%
   Other Crops	None	None	1 seed/lb.
   Other Varieties	1 seed/lb.	1 seed/lb.	1 seed/lb.
   Weed Seeds	None	None	None
   Germination	90.00%	90.00%	90.00%

Authority Note

AUTHORITY NOTE: Promulgated in accordance with R.S. 3:1433.

Historical Note

HISTORICAL NOTE: Promulgated by the Department of Agriculture, Seed Commission, LR 8:586 (November 1982), amended LR 9:197 (April 1983), amended by the Department of Agriculture and Forestry, Office of Agricultural and Environmental Sciences, Seed Commission, LR 12:825 (December 1986), repromulgated by the Department of Agriculture and Forestry, Office of Agricultural and Environmental Sciences, Agricultural Chemistry and Seed Commission, LR 39:2731 (October 2013).