PDFWAC 16-302-680
Open pollinated sorghum standards for seed certification.
(1) Land, isolation and field standards for open pollinated sorghum seed certification are:
field standards (c) | ||||
class | land standards minimum years | isolation standards minimum feet | off-type maximum ratio | other crop maximum no standard |
Foundation | 1 (a) | 1,000 (b) | None found | NS |
Registered | 1 (a) | 1,000 (b) | 1 head/50,000 | NS |
Certified | 1 (a) | 1,000 (b) | 1 head/20,000 | NS |
(a) | Waived if the previous crop was grown from an equal or higher Certified class of seed of the same variety. |
(b) | Refers to fields of other varieties or same variety which does not meet tolerance of off-types. |
(c) | Other tolerances for field standards: |
Class | johnsongrass maximum | head smut maximum | kernel smut maximum |
Foundation | None found | None found | None found |
Registered | None found | None found | None found |
Certified | None found | 1 head/10,000 | 1 head/2,500 |
(2) Seed standards for open pollinated sorghum seed certification are:
class | off-type maximum % | pure seed minimum % | inert maximum % | other crop maximum % | weed maximum % | germination minimum % |
Foundation | None found | 97.00 | 3.00 (b) | None found | 0.10 | 80.00 |
Registered | None found | 97.00 | 3.00 (b) | 0.03 | 0.10 | 80.00 |
Certified | 0.01 (a) | 97.00 | 3.00 (b) | 0.07 (c) | 0.10 | 80.00 |
(a) | Or two seeds per pound. |
(b) | Where two percent or more is cracked. |
(c) | Or 10 seeds per pound. |
[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 16-302-680, 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, § 16-302-680, filed 9/25/14, effective 10/26/14. Statutory Authority: RCW 15.49.005, 15.49.081, 15.49.310, 15.49.370(3) and chapter 17.24 RCW. WSR 00-24-077, § 16-302-680, filed 12/4/00, effective 1/4/01.]