Acta Phytopathologica et Entomoligica 36. (2001)

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Contents DISEASES Petri dish-ELISA, a simple and economic technique for detecting plant viruses M. Е. Abdalla and 5. Е. Albrechtsen ............................................................................................ 1 Biological decline of Solanum nigrum L. due to tobacco mosaic tobamovims (TMV) infection. I. Growth and nutrient uptake G. Kazinczi, D. Pribék and A. Takács ................................................................... 9 Photosynthetic alterations of virus infected plants A. Almási, A. Harsdnyi and R. Gáborjányi ............................................................................... 15 Serological, pathological and molecular characterisation of Hungarian pepper mild mottle tobamovirus (PMMoV) isolates D. Kálmán, L. Palkovics and R. Gáborjányi ............................................................................ 31 Relationship between resistance to barley yellow dwarf virus in spring barley and aphid feeding behaviour O. O. Banwo and R. Harrington ........................................................................... 43 Characterization of Yugoslavian Erwinia amylovora isolates originating from apple trees comparing with other strains of the pathogen V. Gavrilovic, G. Jovanovic and M. Arsenijevic..................................................... 49 Occurrence and spread of fire blight pathogen (Erwinia amylovora) on spontaneous and ornamental plants in Yugoslavia M. Arsenijevic, G. Jovanovic and V. Gavrilovic..................................................... 55 Development and genetic analysis of common wheat introgressive lines resistant to leaf rust E. B. Budashkina and N. P. Kalinina ............................................................................................ 61 Differential induction of chitinase and ß-l,3-glucanase in rice in response to inoculation with a pathogen (Rhizoctonia solani) and a non-pathogen (Pestalotia palmarum) S. D. Deborah, A. Palaniswami and R. Velazhahan............................................... 67 MAGYAR UfilQMÁNYOS AKADÉMIA KÖNYVTARA 31567 fi

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