SGS is experienced with cotton testing which includes routine tests like germination, cool, herbicide and insect trait tests. We utilize both the towel and kimpak methods for cotton germination and herbicide bioassay tests. We have developed herbicide bioassays for Roundup Ready cotton utilizing tray-testing methods. - Mechanical Purity and Noxious Weed Examinations
- Standard Germination Tests
- Cold Test
- Sand Emergence Test
Mechanical Purity and Noxious Weed Examinations
Mechanical Purity and Noxious Weed Examinations are conducted in accordance with the Association of Official Seed Analysts (AOSA) “Rules for Testing Seed”; ISTA tests are also available. Submit a 500-gram sample. Standard Germination Tests
Standard Germination Tests are conducted in accordance with the Association of Official Seed Analysts (AOSA) “Rules for Testing Seed”. ISTA tests are also available. Germinations are routinely conducted on 400 seed and complete at 8 days. Submit a 250-gram sample for germination. Cool Test
Cool Test is performed on 200 seed at 18 oC in moist towels for 7 days. Seedlings are evaluated on the 7th day and all seedlings 4cm or longer are counted and reported as the cool test germination percentage. A 2-day extended cool test is available, providing customers with a cool germination percentage at 9 days. The cool chamber media temperature is checked with a NIST thermometer and monitored using the Lab Tech temperature monitoring software to ensure a consistent 18oC temperature throughout the duration of testing, as this is critical to seedling development. Sand Emergence Test
Sand Emergence Test is available as an alternative germination test. The sand test is useful as it provides uniform water uptake and simulates seedbed conditions. Sand will facilitate root growth on damaged seedlings and tends to suppress fungal growth related to seed coat infections. 400 seed are germinated for 7 days at 30oC. |
