The International Seed Testing Association (ISTA) standardizes testing around the globe to ensure analysts do their best work — including recommending the best temperature to conduct vigour testing at.
Still, various seed testing outlets use a variety of different temperatures to conduct vigour tests, some as high as 10 C. Most farmers in Western Canada don’t consider 10 C very cold, so we use the recommended 5 C as our baseline to determine how seed is performing to ensure growers get the most bang for their buck.
But there’s a twist.
Sarah Foster’s recent column about the benefits offered by the cereal stress profile showed what a great tool this test is for growers. In case you missed it, a quick recap: a cereal stress profile can show you a seed’s ability to germinate under the best conditions by providing the optimum temperature for field emergence. It will give you the correct temperature for your seed emergence with a comparison to your germination result.
It allows you to plan ahead and decide when the best time is to seed. If your seed shows its best performance at 9 C, then you know to wait until the weather warms up enough to ensure even emergence throughout the field, even if this means waiting a tad longer to seed.
Knowledge is power, and a stress profile gives you that knowledge. By testing seed at a range of different temperatures, we help you unlock the secret to your seed’s performance.
Seed quality is key to success. Please don’t leave it until the last minute. Our indication of seed losing germination and vigour this year is troubling. A good germination and low vigour can be managed. Compensating with a higher seeding rate is beneficial but starting with an optimum soil temperature is recommended.
The stress test will show the seeds’ ability to germinate under the best conditions by providing the optimum temperature for field emergence. It will give you the correct temperature for your seed emergence with a comparison to your germination result. We will find the “sweet spot” for germination and help you manage your questionable lots. Each of our clients will have different profiles so we will work with you on an individual basis.
Combining international recommendations with our own innovation has resulted in a unique test that’s receiving a lot of fanfare and uptake.