Since 2019, DPIRD has been screening National Variety Trials (NVT) for leaf, stem, and root diseases and developing resistance ratings for wheat, barley, oats, lupins and field peas in WA and nationally.
In WA, there are 49 trials based at Carnarvon, Geraldton, South Perth, Shenton Park, Manjimup and Esperance.
As part of the project, nurseries at those sites were sown by August 10 every year, from 2019 to 2022, with the nurseries managed to ensure disease onset in accordance with disease screening protocols.
DPIRD conducted screenings of all field and glasshouse nurseries for crop and disease combinations annually, with the information submitted to the NVT database and the DPIRD team participating in assigning national disease ratings annually.
All disease resistance rating data established from the seasons is published on the NVT website once finalised, making it accessible to all growers, breeders and advisors.
The disease ratings for NVT lines and commercial varieties are also published annually in DPIRD’s Crop Sowing Guide for Western Australia.
The final report for the project is due in April 2024.
DPIRD & GRDC