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Penicillium expansum Invades Apples Through Stems during Controlled Atmosphere Storage

D. A. Rosenberger, C. A. Engle, F. W. Meyer, and C. B. Watkins

December 2006


Empire apples were collected from six orchards in 1997 and 1998 and were then subjected to various inoculation and storage regimes to determine how non-wounded fruit become infected with Penicillium expansum and to determine if decay susceptibility varies with orchard source. This is the first report of P. expansum causing commercial losses in apples due to invasion through stems and also the first report suggesting a relationship between boron nutrition and decay susceptibility in apples.


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