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Ecology and Epidemiology

Effect of Temperature on Susceptibility of Normal and Aberrant Ratio Corn Stocks to Barley Stripe Mosaic and Wheat Streak Mosaic Viruses. Myron K. Brakke, Research chemist, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture and also professor, Department of Plant Pathology, University of Nebraska, Lincoln 68583; Richard Samson, student, University of Nebraska, Lincoln 68583. Phytopathology 71:823-824. Accepted for publication 22 January 1981. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1981. DOI: 10.1094/Phyto-71-823.

Corn was more susceptible to systemic infection by barley stripe mosaic virus at 25 C than at 35 C, but cultivar Black Hulless barley was equally susceptible at both temperatures. Some corn lines were more susceptible to wheat streak mosaic virus at 35 C than at 25 C, but other lines were equally susceptible at those temperatures. Plants of corn stocks with a virus-induced mutation, aberrant ratio, were susceptible to infection by the inducing virus.