I.
Land Requirements
Wheat
intended for certification shall not be grown on land which produced a wheat
grain crop of the same kind the previous year unless the crop was from certified
seed of the same variety.
One
year must elapse between destruction of a stand of a variety and establishment
of a stand of a specific class of a variety of the same kind. Requirement is
waived if the previous crop was grown from certified seed of the same variety.
II.
Field Inspection
A
field inspection will be made prior to harvest after the grain is fully headed
and has assumed a mature color.
III.
Field Standards
A.
General
1.
Unit of Certification
The
unit of certification shall be a field, but a portion of a field may be approved
provided the discarded portion can be harvested separately and is eliminated
from certification.
2.
Isolation
a.
Wheat
(All Types)
Field
boundaries must be clearly marked. If
boundaries are determined by means other than permanent fixtures (fences, roads,
hedges, etc.), such boundary must be no less than 10 feet from a non-certified
field of the same variety, another variety or other small grain.
b.
Highly
cross pollinating wheat varieties
There
shall be at least 50 feet of isolation for highly cross pollinating varieties of
wheat from other small grains of the same kind unless it is of the same variety
grown from certified seed.
1.
|
Factor |
Maximum
permitted in each class |
||
|
Foundation |
Registered |
Certified |
|
|
Other
varieties (maximum) |
1:3,000
heads |
1:2,000
heads |
1:1,000
heads |
|
Inseparable other
crops (maximum) ¹ |
1:10,000
heads |
1:10,000
heads |
1:2,000
heads |
|
Objectionable
weeds whose seed are inseparable (maximum) ² |
None |
None |
None |
1Inseparable
other crops shall include crop plants, the seed of which cannot be thoroughly
removed by the usual methods of cleaning.
2Noxious weeds, seed of which are inseparable, must be destroyed by
rouging or mowing before field inspection is made.
Fields containing field bindweed shall be rejected in all cases.
2.
If Jointed Goatgrass,
Rescuegrass. Ryegrass or Wild oats are found during field inspection secondary
cleaning equipment (indent disk/cylinder or gravity table) must be used when
conditioning.
IV.
Referee Sample
A
representative two-pound sample of seed as it is to be sold shall be submitted
to the Association for laboratory analysis.
V.
Seed Standards – Wheat (All Types)
|
Factor |
Standards for each class |
||
|
|
Foundation |
Registered |
Certified |
|
Pure
seed (minimum)
|
98.00% |
98.00% |
98.00% |
|
Inert
matter (maximum) ¹ |
2.00% |
2.00% |
2.00% |
|
Weed seed (maximum) |
0.10% |
0.10% |
0.10% |
|
Objectionable
weeds (maximum) ² |
|
0 |
|
|
Total other crop seeds (maximum) |
0.06% |
0.10% |
0.10% |
|
Other
varieties (maximum) |
0.05% |
0.10% |
0.20% |
|
Other kinds (maximum) ³ |
0.01% |
0.02% |
0.05% |
|
Germination
(minimum) |
85.00% |
85.00% |
85.00% |
|
Diseases 4 |
---- |
---- |
---- |
1Wheat
shall not contain more than 2 percent inert matter other than broken seed.
2See Section XLI P, also,
Combined maximum
allowable for cheat (Bromus secalinus), corncockle (Agrostemma githago),
wild mustard (Brassica kaber), morningglory (Ipomoea spp.), wild
buckwheat (Polygonum convolvulus), and horsenettle (Solanum
carolinense) one in two pounds.
3For
other small grains the maximum of 1 per pound in Foundation, 2 per pound in
Registered and 5 per pound in Certified must not be exceeded.
No rye permitted in wheat.
4If chemically controlled seed-borne diseases are
noted upon field inspection or laboratory observation, seed treatment is
required.