Key Points
- Terpal had the single greatest effect on plant height, lodging, neck break and yield and resulted in significant economic benefits at one site
- The sequence of GS31 Cycocel followed by GS49 Terpal resulted in the greatest reduction in plant height although there was no advantage in terms of reduced lodging, neck break or increased yield when compared with 1.0l/ha Terpal
- In this trial series, there was no yield benefit from applying 1.0l/ha Terpal compared with 0.5l/ha. The only difference was a height reduction for the higher Terpal rate at Hinds
- Under dryland inputs (reduced nitrogen and sowing rate), there was no advantage in applying PGR even under high rainfall conditions
- At Balfour, all PGR treatments reduced plant height, stem break and neck break, but there were no significant differences in yield