Fig. 9. Mike Smith (left) and Ken Pegg (right), of the Queensland Department of Primary Industries, next to a CO₆₀ irradiated accession of ‘Williams’ AAA that they developed. Although the selection resists race 4 in Queensland, Australia, it has succumbed here in a plot at the Taiwan Banana Research Institute (TBRI). The history of the banana improvement programs is filled with examples of "resistant" selections such as this that succumbed to Panama disease after they were disseminated to another region (photo courtesy of R. C. Ploetz).

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