Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak
SYMPTOMS of an unknown disorder have been increasingly observed on pepper vines since 1956 ; no pathogen seemed to be involved. Affected vines show an overall bright green to yellow colour and their leaves a pronounced droop. Individual leaves first show symptoms of a speckled necrosis mostly along...
| Main Authors: | , |
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| Format: | Article |
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Nature Publishing Group
1960
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| Online Access: | http://psasir.upm.edu.my/id/eprint/115007/ |
| _version_ | 1848866659372105728 |
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| author | De Waard, P.W.F. Sutton, C.D. |
| author_facet | De Waard, P.W.F. Sutton, C.D. |
| author_sort | De Waard, P.W.F. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | SYMPTOMS of an unknown disorder have been increasingly observed on pepper vines since 1956 ; no pathogen seemed to be involved. Affected vines show an overall bright green to yellow colour and their leaves a pronounced droop. Individual leaves first show symptoms of a speckled necrosis mostly along the main veins, each brown spot having a surrounding yellow halo. Afterwards the necrotic areas spread and become more serious so that finally the leaves fall. These vines have a greatly reduced root system, which dies off centripetally. Different stages of the leaf symptoms are shown in Fig. 1. |
| first_indexed | 2025-11-15T14:24:07Z |
| format | Article |
| id | upm-115007 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:24:07Z |
| publishDate | 1960 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1150072025-02-14T06:53:43Z http://psasir.upm.edu.my/id/eprint/115007/ Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak De Waard, P.W.F. Sutton, C.D. SYMPTOMS of an unknown disorder have been increasingly observed on pepper vines since 1956 ; no pathogen seemed to be involved. Affected vines show an overall bright green to yellow colour and their leaves a pronounced droop. Individual leaves first show symptoms of a speckled necrosis mostly along the main veins, each brown spot having a surrounding yellow halo. Afterwards the necrotic areas spread and become more serious so that finally the leaves fall. These vines have a greatly reduced root system, which dies off centripetally. Different stages of the leaf symptoms are shown in Fig. 1. Nature Publishing Group 1960-12-24 Article PeerReviewed De Waard, P.W.F. and Sutton, C.D. (1960) Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak. Nature, 188 (4756). pp. 1129-1130. ISSN 0028-0836; eISSN: 0028-0836 https://www.nature.com/articles/1881129a0?error=cookies_not_supported&code=47b8f972-a20a-40ff-8e5d-59129dd6c824 10.1038/1881129a0 |
| spellingShingle | De Waard, P.W.F. Sutton, C.D. Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title | Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title_full | Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title_fullStr | Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title_full_unstemmed | Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title_short | Toxicity of aluminium to black pepper (piper nigrum L.) in Sarawak |
| title_sort | toxicity of aluminium to black pepper (piper nigrum l.) in sarawak |
| url | http://psasir.upm.edu.my/id/eprint/115007/ http://psasir.upm.edu.my/id/eprint/115007/ http://psasir.upm.edu.my/id/eprint/115007/ |