The North Carolina Department of Agriculture and Consumer Services conducted a cotton seed testing pilot program during the 2020 planting season. The sampling was conducted by seed and fertilizer field staff with testing conducted in the North Carolina Seed Lab.
The length of time to complete testing of cotton seed samples varied due to workload and COVID-19 response. Even with those issues, sample were completed within a five- to 14-day interval depending on planting date within the lab.
According to the Association of Official Seed Analysts Rules for Testing Seed, warm germ tests for cotton are 12 days and cool test are seven days. In the North Carolina Seed Lab, if germination numbers were in the mid-90s or higher on count #1, the test was finalized. Any other tests finalized earlier than 12 days was due to sample having no more germination potential.
Cotton seed samples were collected during the period of Dec. 30, 2019, through June 9, 2020. NCDA&CS Division of Plant collected samples from 607 cotton seed lots in the state. The cotton seed samples were tested and separated into germination percentages for both warm and cool germination. The following information provides a breakdown of the results:
Stop Sales Issued
The North Carolina Department of Agriculture and Consumer Services issued 13 stop sales due to violations on cotton seed sampled in 2020. The violations were due to the following:
• Germination Test Date Expired- 6 samples
• Germination did not meet the 80% threshold as labeled on the product – 7 samples
View the full NCDA&CS report here.