The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern
Investigation on factors affecting the population fluctuations of Helopeltis theivora in relation to food supply and rainfall in the field was conducted. Results showed that population fluctuations seem to be dictated by rainfall and numbers of available pods as shown by positive correlations betw...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
1993
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| Online Access: | http://psasir.upm.edu.my/id/eprint/3182/ http://psasir.upm.edu.my/id/eprint/3182/1/The_Relationship_between_Population_Fluctuations_of_Helopeltis_theivora.pdf |
| _version_ | 1848839459048521728 |
|---|---|
| author | Muhamad Awang, Rita Chung, Gait Fee |
| author_facet | Muhamad Awang, Rita Chung, Gait Fee |
| author_sort | Muhamad Awang, Rita |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Investigation on factors affecting the population fluctuations of Helopeltis theivora in relation to food supply
and rainfall in the field was conducted. Results showed that population fluctuations seem to be dictated by rainfall
and numbers of available pods as shown by positive correlations between them. The results also showed a
significant yield decrease with increased mind populations. The numbers of cherelles and pods on a tree determine
it attractiveness, since significantly more cherelles and pods were found on infested trees than on uninfested trees. |
| first_indexed | 2025-11-15T07:11:47Z |
| format | Article |
| id | upm-3182 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:11:47Z |
| publishDate | 1993 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-31822015-08-28T09:08:28Z http://psasir.upm.edu.my/id/eprint/3182/ The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern Muhamad Awang, Rita Chung, Gait Fee Investigation on factors affecting the population fluctuations of Helopeltis theivora in relation to food supply and rainfall in the field was conducted. Results showed that population fluctuations seem to be dictated by rainfall and numbers of available pods as shown by positive correlations between them. The results also showed a significant yield decrease with increased mind populations. The numbers of cherelles and pods on a tree determine it attractiveness, since significantly more cherelles and pods were found on infested trees than on uninfested trees. Universiti Putra Malaysia Press 1993 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3182/1/The_Relationship_between_Population_Fluctuations_of_Helopeltis_theivora.pdf Muhamad Awang, Rita and Chung, Gait Fee (1993) The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern. Pertanika Journal of Tropical Agricultural Science, 16 (2). pp. 81-86. ISSN 0126-6128 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2016%20(2)%20Aug.%201993/02%20JTAS%20Vol.16%20(2)%201993%20(Pg%2081-86).pdf |
| spellingShingle | Muhamad Awang, Rita Chung, Gait Fee The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title | The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title_full | The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title_fullStr | The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title_full_unstemmed | The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title_short | The Relationship between population fluctuations of Helopeltis theivora Waterhouse, availability of Cocoa Pods and Rainfall Pattern |
| title_sort | relationship between population fluctuations of helopeltis theivora waterhouse, availability of cocoa pods and rainfall pattern |
| url | http://psasir.upm.edu.my/id/eprint/3182/ http://psasir.upm.edu.my/id/eprint/3182/ http://psasir.upm.edu.my/id/eprint/3182/1/The_Relationship_between_Population_Fluctuations_of_Helopeltis_theivora.pdf |