Rust diseases, including leaf, stripe and stem rusts, are the most widely occurring diseases of wheat worldwide. Pyramiding multiple resistant genes has been proposed as the most effective way to control these diseases in wheat. However, to practise this approach, one must know the most effective gene combinations from the pool of more than 200 genes that bring resistance to the three rust diseases. Deployment the most effective gene pyramids will ensure the maintenance of durable rust resistance within Canadian wheat cultivars, thus avoid production losses from rust epidemics.

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