PDFWAC 16-302-815

Seed standards for sunflower seed production.

(1) Samples submitted for certification must be a minimum of one thousand grams.
(2) Seed standards for sunflowers are as follows:
Factor
Foundation
Registered
Certified
Pure seed - Minimum %
98
98
98
Inter matter - Maximum %
2
2
2
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
85
85
*
Varietal differentiation cannot always be distinguished in a seed sample. When varietal differences are evident this standard applies.
[Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3), and chapter 34.05 RCW. WSR 14-20-050, § 16-302-815, filed 9/25/14, effective 10/26/14.]