Now that all the Victorian trials have been harvested the team is working on finalising results from the trials. A key part of the results is the grain quality data which is gathered through testing samples in our newly upgraded lab. While the first thing most people look for is how a trial yielded, the grain quality results also tell a big part of the story as high-quality grain can open doors to premium markets and ensure better returns for farmers.

Typically, a grain sample from each plot that we harvest is brought back to the lab for several different tests. The first step is to use our FOSS machine which analyses the sample for protein, oil and moisture percentages. Protein percentages in cereals can determine which markets the grain has access. For example, for a Barley to be accepted as a Malt grade it requires a protein percentage between 9 and 12 percent. Some major factors that impact protein in cereals is nitrogen availability and stressful conditions.

In a season such as 2024 with stressful conditions, high protein levels may occur as the plants re-allocate resources into protein when stressed.

The next  test is test weight, screenings and retention percentages. Test weight is a measure of the grain’s density and weight of a given volume. Things like moisture stress, frosts and disease can all lead to lighter grains and a reduction in test weight.

Some trials are also tested for thousand grain weight (TGW), using our new seed counter. TGW can be used as a measure of grain quality as larger seeds, indicated by a higher TGW, can result in better establishment and growth and therefore more potential yield.

SFS has also conducted tests for growers sampled straight from the paddock. Testing has been open to growers during weekdays and is always good to have a chat with them about how they are fairing during harvest.

Image: Testing a grain sample through the FOSS machine Source: J Palmer, SFS