Reactions of Sixty-Seven Accessions of Twelve Cucumis Species to Seven Viruses

Horváth, József (1993) Reactions of Sixty-Seven Accessions of Twelve Cucumis Species to Seven Viruses. ACTA PHYTOPATHOLOGICA ET ENTOMOLOGICA HUNGARICA, 28 (2-4). pp. 403-414. ISSN 0238-1249

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Abstract

Four varieties, eight cultivars and 67 accessions of twelve Cucumis species originating from 45 contries were examined for reaction to seven viruses (cucumber green mottle mosaic Tobamovirus, CGMMV; cucumber leaf spot Carmovirus, CLSV; cucumber mosaic Cucumovirus, CMV; melon necrotic spot Carmovirus, MNSV; Melandrium yellow fleck Bromovirus, MYFV; watermelon mosaic-2 Potyvirus, WMV-2; zucchini yellow mosaic Potyvirus, ZYMV). Out of the 410 host-virus relationships 219 were compatible and 191 incompatible. From the point of view of resistance to the viruses examined Cucumis africanus G1. 2302 proved the best, being immune to five viruses (CGMMV, CLSV, CMV, WMV-2, ZYMV). Good resistance qualities were shown by Cucumis melo P. I. 217974, which was immune to four viruses (CLSV, CMV, WMV-2, ZYMV) and hypersensitively resistant to two viruses (MNSV, MYFV). Cucumis melo P. I. 161375, an accession known thought by the literature, but so far unknown for its behaviour to certain viruses was immune to four viruses (CGMMV, MNSV, WMV-2, ZYMV), and showed hypersensitive resistance to MYFV. The highest susceptibility to viruses was found in Cucumis dipsaceus G1. 0255, which proved susceptible to all viruses included in the study. The second in order of susceptibility was Cucumis melo P. I. 288988, which was susceptible to 5 out of 6 viruses (CGMMV, CLSV, CMV: WMV-2, ZYMV), and showed hypersensitive resistance to one virus. Next from the point of view of susceptibility was Cucumis metuliferus G1.1775, which was susceptible to 5 out 6 viruses (CGMMV, CLSV, CMV, WMV-2, ZYMV), and resistant to one virus, Cucumis melo P. I. 116479 was susceptible to 6 out of the 7 viruses (CGMMV, CLSV, CMV, MNSV, WMV-2, ZYMV) and immune to one virus.

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