Browsing Plant Pathology Masters Theses by Author "El-Nashaar, Hossien Mahmoud"
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Scanning Electron Microscope Examination of Sugarbeet Flowers and Fruits Infected with Phoma Betae
El-Nashaar, Hossien Mahmoud (North Dakota State University, 1980)There are three natural openings in a mature sugarbeet fruit which serve as avenues of entry for microorganisms: 1) the basal pore which contains dried parenchyma and vascular tissue and is the point where the flower was ...