Key Points
- Germination tests determine the maximum germination potential of a seed line.
- The primary purpose of a vigour test is to indicate whether or not trouble may be expected from high germinating seed lines when placed under environmental stress in the field.
- The use of low vigour seed may result in reduced plant numbers and reduced grain yields.
- In a FAR 2005 trial seed treatments applied to a low vigour seed line gave significant increase in plant population and yield when compared to the nil treatment, contrary to current best practice.
- Both seed vigour and seed treatment had a significant effect on grain yield.