The measurement of disease intensity plays the same key role for plant pathology as does diagnosis. Without quantification of disease no studies in epidemiology, no assessment of crop losses and no plant disease surveys and their applications would be possible. Disease assessment is also needed for many other applications in plant pathology, such as screening for resistance and fungicides. It expresses the effects of various treatments or factors on disease in experiments, and disease control.


Powdery Mildew Sampling Unit Disease Assessment Root Disease Disease Intensity 
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Copyright information

© Springer-Verlag Heidelberg 1988

Authors and Affiliations

  • J. Kranz
    • 1
  1. 1.Phytopathologie und angew. Entomologie, WZ TropeninstitutJustus-Liebig-UniversitätGießenGermany

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