Abstract
A simple point-inoculation method using Novec™ 7100, a volatile engineered fluid, is presented for the assessment of aggressiveness of Puccinia striiformis isolates on seedlings of wheat. The method allows for quantification of the applied inoculum with a minimal risk of cross-contamination of rust from leaves grown side by side. The method is also applicable for the assessment of qualitative differences inferred by compatible and incompatible host-pathogen interactions, and it can be adjusted to other cereal rust and powdery mildew fungi on other host species, and other plant growth stages as appropriate.
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