A “4-year adjusted mean” is a mean over trials in the last 4 years. This mean has been adjusted statistically to take account of the absence of some cultivars in some trials (for example, if a cultivar was missing from an especially high yielding trial, it would otherwise be unfairly disadvantaged). This adjustment enables fair comparisons between cultivars within each site and region.
- Autumn sown barley cultivar performance – Canterbury and Southland.
- Autumn sown feed and biscuit wheat cultivar performance – Canterbury and Southland and Southern North Island.
- May sown milling wheat cultivar performance – Canterbury.