Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal
Various virus‐like symptoms were recorded on field‐grown cowpea(Vigna unguiculataL. Walp) and pea(Pisum sativumL.) during 1989–1990 at the experimental farm of the Institute of Agriculture and Animal Sciences (IAAS), Rampur, Chitwan valley, in the central terai plains of Nepal. The causal agent(s) c...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
1996
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/103260 |
| _version_ | 1855521491477594112 |
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| author | Dahal, G. Albrechtsen, S.E. |
| author_browse | Albrechtsen, S.E. Dahal, G. |
| author_facet | Dahal, G. Albrechtsen, S.E. |
| author_sort | Dahal, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Various virus‐like symptoms were recorded on field‐grown cowpea(Vigna unguiculataL. Walp) and pea(Pisum sativumL.) during 1989–1990 at the experimental farm of the Institute of Agriculture and Animal Sciences (IAAS), Rampur, Chitwan valley, in the central terai plains of Nepal. The causal agent(s) causing narrow and/or curled leaves, and stunting of pea, and prominent mosaic and vein banding of cowpea were transmitted by both aphids and sap inoculations. Electron microscopic examination of leaf extracts from affected cowpea and pea plants revealed the presence of flexuous filamentous virus particles c. 700 nm long, similar to those of potyviruses. The virions in the leaf extracts from cowpea samples reacted strongly to antibodies against cowpea aphid‐borne mosaic potyvirus (CABMV) in immunosorbent electron microscopy, while the extract from the pea samples reacted strongly to antibodies against pea seed‐borne mosaic potyvirus (PSbMV) in enzyme‐linked immunosorbent assay (ELISA). Time of planting had a significant effect on pea disease incidence and grain yield. The incidence was higher in the late planted pea crop (January) than those planted in November and December. The grain yield and its components (pod filling, number of seeds per pod, and seed weight) were significantly less in the late‐planted crops. |
| format | Journal Article |
| id | CGSpace103260 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1996 |
| publishDateRange | 1996 |
| publishDateSort | 1996 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1032602024-08-27T10:35:31Z Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal Dahal, G. Albrechtsen, S.E. cowpeas peas viruses symptoms agriculture animal sciences mosaic viruses aphids leaf area potyviruses antibodies enzymes grain yields crops Various virus‐like symptoms were recorded on field‐grown cowpea(Vigna unguiculataL. Walp) and pea(Pisum sativumL.) during 1989–1990 at the experimental farm of the Institute of Agriculture and Animal Sciences (IAAS), Rampur, Chitwan valley, in the central terai plains of Nepal. The causal agent(s) causing narrow and/or curled leaves, and stunting of pea, and prominent mosaic and vein banding of cowpea were transmitted by both aphids and sap inoculations. Electron microscopic examination of leaf extracts from affected cowpea and pea plants revealed the presence of flexuous filamentous virus particles c. 700 nm long, similar to those of potyviruses. The virions in the leaf extracts from cowpea samples reacted strongly to antibodies against cowpea aphid‐borne mosaic potyvirus (CABMV) in immunosorbent electron microscopy, while the extract from the pea samples reacted strongly to antibodies against pea seed‐borne mosaic potyvirus (PSbMV) in enzyme‐linked immunosorbent assay (ELISA). Time of planting had a significant effect on pea disease incidence and grain yield. The incidence was higher in the late planted pea crop (January) than those planted in November and December. The grain yield and its components (pod filling, number of seeds per pod, and seed weight) were significantly less in the late‐planted crops. 1996-01 2019-08-21T14:12:48Z 2019-08-21T14:12:48Z Journal Article https://hdl.handle.net/10568/103260 en Limited Access Informa UK Limited Dahal, G. & Albrechtsen, S.E. (1996). Some studies on cowpea aphid‐borne mosaic and pea seed‐borne mosaic potyviruses in Nepal. International Journal of Pest Management, 42(4), 337-344. |
| spellingShingle | cowpeas peas viruses symptoms agriculture animal sciences mosaic viruses aphids leaf area potyviruses antibodies enzymes grain yields crops Dahal, G. Albrechtsen, S.E. Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title | Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title_full | Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title_fullStr | Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title_full_unstemmed | Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title_short | Some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in Nepal |
| title_sort | some studies on cowpea aphidborne mosaic and pea seedborne mosaic potyviruses in nepal |
| topic | cowpeas peas viruses symptoms agriculture animal sciences mosaic viruses aphids leaf area potyviruses antibodies enzymes grain yields crops |
| url | https://hdl.handle.net/10568/103260 |
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