Soybean Services
- Soybean Sand Germination Test
- Soybean Warm Germination Test
- Soybean Vigor - Accelerated Aging (AA) Test
- Soybean Vigor - Tray Cold Test
- Soybean Herbicide Traits Test
- Soybean Varietal Purity Tests
- Soybean Purity & Noxious Weed Examinations
- Soybean Tetrazolium Test
- Soybean Seed Count
- Soybean Seed Moisture Test
- Soybean Visual Ratings
- Soybean Soak Test
- Soybean Export Certificates
Soybean Varietal Purity Tests

Soybean hilium colors being evaluated
Hilum Examination (VP)
Seeds are examined for true type hilum color. Off type hilum colors are weighed by color and reported. Hilum color is our recommended VP test for soybeans. Colors reported: Black, Imperfect black, brown, buff, yellow and gray.
Hypocotyl Color
200 seeds are grown at 25C using a peat/sand mix under intense light to promote true hypocotyl color expression in 7-day old seedlings. This is our second most utilized VP test. Colors reported: Purple or Green.
Peroxidase Reaction
6 seeds are tested by removal of seed coat and exposure to a Guaiacol/Hydrogen Peroxide solution. Reaction reported high or low.
Value of Results
These tests can help ID a mixture of varieties or tolerant to a herbicide trait.
Lab News
See what others are saying about SoDak Labs in this article recently published by Farm Journal.
Agronomically Accurate Seed Testing Results
SoDak Lab's goal is to deliver fast, accurate, and diagnostic seed testing services.