Media release no.
Agriculture Western Australia is setting up a second year of trials to evaluate the performance and cost of two popular canola varieties that have a resistance to different herbicides. In the first year of the trial last year, three evaluation sites were established at Wongan Hills, Avondale and Katanning in a split design to treat each of the herbicide resistant types according to its production package requirements. Mr Carmody said the IT varieties had better vigour than the TT varieties, which might explain why they performed better than the best of the TT varieties when sown late in the season. Although the trial at Avondale was sown as late as 7 July 2000, it produced a better result overall than the Katanning site as it experienced a better finish. The trial at Wongan Hill gave a highly variable result across all varieties and herbicide treatments, so it was not reported on.