QSTL specializes in the testing of herbage, forage, vegetable, flower and native seed species for both national and international certificates.

Analytical activities to ISTA accreditation standards include:

Sampling

Purity Testing

Other Seed Determination (i.e. weed seed searches)

Germination Testing

Tetrazolium

Moisture Content Determination

Vigour Testing 

Cold Tests

Cool Tests

Emergence in Soil (explanation below) 

Accelerated Ageing (explanation below)

Emergence in soil - This test gives you an indication of how the seed will perform when planted within a reasonable time frame for that species. The results are used to make decisions on planting an determine your planting rate. The seed is placed under soil in set depths and the rate of emergence is measured as a percentage. Only the seeds that emerge out of the soil are counted. If your seed is ageing the germination may still be good but the vigour will drop and the germination test may not reflect what will come up in the field. 

Accelerated Ageing - This test indicates what will happen to the germination after the seed is stored for a period of time. During this test, the seed is exposed to conditions of high humidity and high temperature for short periods of time and then germinated. The results are compared to a control germination  to determine how the seeds will tolerate storage conditions. These results can also be used to determine seed vigour - high vigour seed will show small decreases in germination while low vigour seed will show a decrease in germination. 

The Request for Analysis  Form can be downloaded here.

Price list is available upon request.

Native seed germination is a specialty!

QSTL also undertakes seed technology research for seed companies and individuals by arrangement.