Mosaic in Vigna sinensis in the state of Pernambuco, Brazil. II. Symptons and host range of the Mosaic "II"

Abstract

Symptoms and host range of Mosaic "II" isolated from Vigna sinensis (L.) Savi ex Hassk are presented. Native accessions and introduced cultivars of 55 species distributed among the following botanical families: Apocinaceae, Caricaceae, Chenopodiaceae, Compositae, Commelinaceae, Gramineae, Iridaceae, Leguminosae, Malvaceae, Passifloraceae and Solanaceae were included. Twenty one species tested exhibited symptoms of disease, 5 species were demonstrated to be symptomless carriers, and 29 species were not infected. Five cultivars of Vigna sinensis and 21 of Phaseolus vulgaris were resistant. All tests were conducted in the laboratory and greenhouse, and inoculations were by mechanical methods.