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Lack of Close Correlation of Stalk-Rot Reactions of Corn Inbreds Inoculated with Diplodia maydis and Colletotrichum graminicola. D. G. White, Assistant Professor, Department of Plant Pathology, University of Illinois, Urbana, IL 61801; Phytopathology 67:105-107. Accepted for publication 21 June 1976. Copyright 1977 The American Phytopathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121. All rights reserved.. DOI: 10.1094/Phyto-67-105.

Stalk-rot reactions of 99 corn inbreds inoculated with Colletotrichum graminicola or Diplodia maydis were not closely correlated. Because of this, selection for stalk-rot resistance on the basis of reactions to D. maydis alone may no longer be suitable in areas where C. graminicola is potentially damaging. Methods of inoculation and reactions of some widely-used inbreds to the two pathogens are presented.

Additional keywords: resistance, anthracnose, Zea mays, maize.