1. General standards.

The general standards as adopted in the front of this publication are basic and applies to small grain.

2. Land requirements.

A crop of small grain will not be eligible for certification if planted on land on which a small grain crop was grown the year previous except a crop of the same variety grown from certified seed.


In fields double-cropped, neither of the two crops grown in the previous calendar year shall have been the same kind as the crop being inspected, unless they were grown from a class of certified seed of the same variety.

3. Field standards.

a. Field Inspection - At least one field inspection shall be made after the crop is fully headed when varietal or crop mixtures can best be determined.

b. Isolation -

(1) Wheat, Oats, Barley, Triticale - A field shall be separated by a strip of ground adequate to prevent mechanical mixtures. The strip may be either mowed, uncropped or planted to some crop than the kind being certified.

(2) Rye - All rye fields used for the production of certified seed must be isolated by at least 220 yards from the fields of any other variety or varieties of rye or fields of the same variety that do not meet the varietal purity requirements for certification. Isolation between diploid and tetraploid rye shall be at least 15 feet.

c. Specific.

                Factor                    Foundation                      Registered                     Certified
Other Varieties                         None                               1:5000                         1:2000

* Inseparable
Other Crops                              None                                 None                10 plants per acre

Inseparable
Objectional Weeds                   None                                 None                            None
                                                  except                               except                          except
                                                  trace of                             trace of                        trace of
                                                   onion                                onion                       onion &
                                                                                                                          trace cockle
**Seed-borne Diseases.        1:20,000                             1:10.000                         1:200
                                               (.005%)                              (0.01%)                         (0.5%)

*Inseparable other crops shall include crop plants, the seed of which cannot be thoroughly removed by the usual methods of cleaning. No rye in other small grains permitted.

**No tolerance

4.     Seed standards.
                              Factor

                                       Foundation                      Registered                           Certified
Pure Seed (minimum)
Wheat, Barley                  99.0%                               99.0%                                99.0%
*Oats, Rye                       98.0%                               98.0%                                98.0%

Inert Matter (maximum)
Wheat, Barley, Triticale   1.0%                                 1.0%                                  1.0%
*Oats, Rye                        2.0%                                 2.0%                                  2.0%

Weed Seeds                      .01%                                .02%                                   .05%

**Objectionable
Weed Seeds                1/16 per oz.                       1/12 per oz.                          1/8 per oz.

***Other Crops               None                                None                                   .05%
 
Other Varieties                None                                 .01%                                   .05%

Germination
Barley, Oats                    90.0%                               90.0%                                  90.0%
Wheat, Rye                     85.0%                               85.0%                                  85.0%

Nematodes                      None                                 None                                     None

*The purity standard for oats may be 98% provided not more than 1% of the impurities consist of impurities other than empty glumes.

**May include wild onion bulblets and wild mustard at the rate of not more than 1/16 per ounce for foundation; 1/12 per ounce for registered; 1/8 per ounce for certified. No corn cockle shall be included in this percentage.

***Registered small grain may contain .01% of the following other crop seed, red clover, lespedeza, orchardgrass, fescue, timothy and rye grass.