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Lespedeza Certification

Applications Due August 1

The general seed certification standards are basic and together with the following specific standards constitute the standards for the certification of lespedeza in Missouri.

Seed Source

  • Foundation seed shall be obtained from the increase of Breeder seed produced by Missouri Foundation Seeds or the sponsoring agency.
  • Registered seed is produced by sowing Foundation seed. A field sown with Foundation seed is eligible to produce Registered seed for two successive seed crop years, including the year of establishment.
  • Certified seed is produced by sowing Foundation or Registered seed. If Foundation seed is sown, seed produced by naturally reseeding crops in the four years immediately following the seeding year is eligible for Certified seed. When Registered seed is sown, seed produced during the seeding year and the first reseeding year is eligible for Certified seed. No more than one season shall elapse between the production of certified seed crops. Fields planted with Certified seed are not eligible for certification.

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Land Requirements

A variety will not be eligible for certification if planted on land where lespedeza, other than a crop eligible for certification and of the same variety, has the opportunity to mature seed during he previous five years for the Foundation class and three years for the Registered or Certified classes. Such land must have been in cultivation for two years (Foundation) and one year (Registered and Certified) prior to planting. The land must be free of volunteer plants of lespedeza during the year immediately prior to establishment. No manure or other contaminating material shall be applied during the year prior to seeding and during the establishment and productive life of the stand.

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Field Standards

  • Isolation Minimum distances from a different variety, or the same variety not under certification, must be at least ten feet. If the adjoining field has been broadcast, the distance must be a minimum of thirty feet. The isolation between classes of the same variety under certification may be reduced up to 25% of the distances otherwise required.
  • Field Inspection
    • Seed fields shall be inspected at least once prior to harvest, preferably at flowering when varietal purity can best be determined.
    • If a field is harvested prior to field inspection, it automatically becomes ineligible for certification.
  • Specific Requirements
Maximum permitted ratio of plants
F R C
Other Varieties*
1:1000
1:35000
1:7000
Other crop
0.05%
0.10%
0.25%
Objectionable Weeds
none
none
none
*includes other species of lespedeza

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Seed Standards

Factor Standards for each class
F R C
Pure Seed (min)
98.00%
98.00%
98.00%
Inert Matter (max)
2.00 %
2.00%
2.00 %
Other Crop Seed* (max)
0.20%
0.50%
1.50%

Other varieties (max)

0.10%
0.25%
0.50%
Other kinds (max)
0.25%
0.50%
0.75%
Weed Seed (max)
0.25%
0.50%
0.75%
Noxious weeds**
9/lb.
27/lb.
45/lb.
Prohibited weeds***
none
none
none

* Including other species of lespedeza
** Missouri State Noxious Weed List
*** Missouri State Prohibited Noxious Weed List

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