Evaluation of Watermelon and Related Germ Plasm for Resistance to Zucchini Yellow Mosaic Virus. George Boyhan, Senior Research Associate, Department of Horticulture, Alabama Agricultural Experiment Station, Auburn University 36849. Joseph D. Norton, Barry J. Jacobsen, and Bruce R. Abrahams. Professor, Department of Horticulture, Professor, Department of Plant Pathology, and Technician, Department of Horticulture, Alabama Agricultural Experiment Station, Auburn University 36849. Plant Dis. 76:251-252. Accepted for publication 1 October 1991. Copyright 1992 The American Phytopathological Society. DOI: 10.1094/PD-76-0251.

Of 153 plant introductions (PI), breeding lines, and commercial cultivars tested by mechanical inoculations in the greenhouse, only PI 482261-1, Egun, PI 494528, PI 386026, and PI 386025 showed any resistance to the Florida strain of zucchini yellow mosaic virus. PI 482261-1 and Egun are Citrullus lanatus, the others are citron types (Citrullus colocynthis). This is the first report of resistance in PI 386026, PI 386025, and the cultivar Egun.