(1) Samples submitted for certification must be a minimum of 1,000 grams.
(2) Seed standards for sunflowers are as follows:
Purity | Foundation | Registered | Certified |
Pure seed - Minimum % | 98.00 | 98.00 | 98.00 |
Inter matter - Maximum % | 2.00 | 2.00 | 2.00 |
Other varieties* - Maximum | 1 seed/lb. | 1 seed/lb. | 6 seeds/lb. of which may not consist of more than 1 purple or white seed |
Other crop seed - Maximum | 1 seed/lb. | 1 seed/lb. | 6 seeds/lb. |
Corn or castor bean seed | None found | None found | None found |
Weed seed - Maximum % | None found | None found | 0.10 |
Germination - Minimum % | 85.00 | 85.00 | 85.00 |
* | Varietal differentiation cannot always be distinguished in a seed sample. When varietal differences are evident this standard applies. |
[Statutory Authority: RCW 15.49.005, [15.49].021, [15.49].310, [15.49].370, 15.140.030, and chapter 15.49 RCW. WSR 25-09-035, s 16-302-815, filed 4/9/25, effective 5/10/25. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3), and chapter 34.05 RCW. WSR 14-20-050, ยง 16-302-815, filed 9/25/14, effective 10/26/14.]