Section 285.623.207. Birdsfoot trefoil.  


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  • (1) Birdsfoot trefoil seed shall be planted on land on which the same crop has not been previously grown for a minimum of 5 years for producing foundation seed and 2 years for producing certified seed. During the year immediately before seeding, the land shall have been in a cultivated crop or fallow and shall be free of volunteer birdsfoot trefoil plants as determined by field inspection. Manure or  other contaminating amendments shall not be applied during the established and productive life of the stand.

    (2)  Any portion of a field that is not to be inspected shall be mowed before flowering.

    (3)   Limitations on the age of stand and pedigree classes of seed through which a variety may be multiplied shall be specified by the originator, but shall not exceed the limitations  that  are established by the certifying agency.

    (4)   Field standards for birdsfoot trefoil seed are as follows:

    Certified

    Classes of Seed Foundation

    Less than5 acres    Less than               5 acres

    Factor                                  5 acres    or more  5 acres     or more Other varieties or off-types

    (maximum)                                       0.1%                      0.1%                       0.2%                       0.2%

    Sweet clover (maximum)   none                       none                       1 plant    1 plant

    per acre per

    acre

    Isolation from flowering plants of other varieties or uninspected plants

    (minimum)                                           900 feet   600 feet  330 feet  165 feet Isolation between different

    seed classes of the same

    variety (minimum)                              225 feet   150 feet  85 feet    45 feet

    (5)   Seed standards for birdsfoot trefoil seed are as follows:

    Classes of Seed

    Factor                                                 Foundation                           Certified

    Pure seed (minimum)                                        98.0%                                    98.0%

    Inert matter (maximum)                     2.0%                                      2.0%

    Weeds (maximum)                                            0.1%                                      0.2%

    Prohibited noxious (maximum)                         none                                      none Docks, sheep sorrel, and restricted

    noxious (maximum)                                         30 per pound       45 per pound Other crops (maximum)                                         0.2%                                      1.0%

    Other varieties or off-types

    (maximum)                                                      0.1%                                      1.0% Sweet clover (maximum)                                         15 per pound                         45 per pound Germination (minimum)                                                                                       80.0%

    Germination less hard seed (minimum)                                                          45.0%

History: 1994 AACS.