Simulation programme for oil palm LAI and yield prediction
Computer simulation models have become an alternative source of information and replacing or enhancing information derived from costly and arduous field experiments, specially like oil palm where filed experiment are expensive, time consuming and laborious. Relatively there are little attempts to de...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/39395/ http://psasir.upm.edu.my/id/eprint/39395/1/39395.pdf |
| _version_ | 1848849132306825216 |
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| author | Wan Ismail, Wan Ishak Awal, Md Abdul Endan, Johari Harun, Mohd. Haniff |
| author_facet | Wan Ismail, Wan Ishak Awal, Md Abdul Endan, Johari Harun, Mohd. Haniff |
| author_sort | Wan Ismail, Wan Ishak |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Computer simulation models have become an alternative source of information and replacing or enhancing information derived from costly and arduous field experiments, specially like oil palm where filed experiment are expensive, time consuming and laborious. Relatively there are little attempts to develop mechanistic models to simulate or forecast oil palm yield. A computer simulation model was developed using Visual C++ for simulation of leaf area index, radiation interception and yield of oil palm. Light interception was modelled using a modified Monsi-Saeki equation. Leaf area index and growth were modelled based on OPSIM approach (Kraalingen, 1985). The growth rate was assumed under ample supply of water and nutrients, in a pest, disease and weed free environment under the prevailing weather conditions. Therefore the rate of dry matter accumulation was a function of radiation interception, temperature and crop characteristics. Simulation results show that leaf area index had a large effect on radiation interception and a significant linear relationship with gap fraction. A significantly relationship was found between the simulated leaf area index and simulated yield, and actual LAI. The simulated LAI can be integrated with the photographic LAI for forecasting the oil palm yield. |
| first_indexed | 2025-11-15T09:45:32Z |
| format | Conference or Workshop Item |
| id | upm-39395 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:45:32Z |
| publishDate | 2005 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-393952015-08-24T02:58:16Z http://psasir.upm.edu.my/id/eprint/39395/ Simulation programme for oil palm LAI and yield prediction Wan Ismail, Wan Ishak Awal, Md Abdul Endan, Johari Harun, Mohd. Haniff Computer simulation models have become an alternative source of information and replacing or enhancing information derived from costly and arduous field experiments, specially like oil palm where filed experiment are expensive, time consuming and laborious. Relatively there are little attempts to develop mechanistic models to simulate or forecast oil palm yield. A computer simulation model was developed using Visual C++ for simulation of leaf area index, radiation interception and yield of oil palm. Light interception was modelled using a modified Monsi-Saeki equation. Leaf area index and growth were modelled based on OPSIM approach (Kraalingen, 1985). The growth rate was assumed under ample supply of water and nutrients, in a pest, disease and weed free environment under the prevailing weather conditions. Therefore the rate of dry matter accumulation was a function of radiation interception, temperature and crop characteristics. Simulation results show that leaf area index had a large effect on radiation interception and a significant linear relationship with gap fraction. A significantly relationship was found between the simulated leaf area index and simulated yield, and actual LAI. The simulated LAI can be integrated with the photographic LAI for forecasting the oil palm yield. 2005 Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/39395/1/39395.pdf Wan Ismail, Wan Ishak and Awal, Md Abdul and Endan, Johari and Harun, Mohd. Haniff (2005) Simulation programme for oil palm LAI and yield prediction. In: International Conference on Advanced Materials 2005: Conference on Bio-Engineering (CoBE 2005), 6-8 Dec. 2005, Putrajaya, Malaysia. . |
| spellingShingle | Wan Ismail, Wan Ishak Awal, Md Abdul Endan, Johari Harun, Mohd. Haniff Simulation programme for oil palm LAI and yield prediction |
| title | Simulation programme for oil palm LAI and yield prediction |
| title_full | Simulation programme for oil palm LAI and yield prediction |
| title_fullStr | Simulation programme for oil palm LAI and yield prediction |
| title_full_unstemmed | Simulation programme for oil palm LAI and yield prediction |
| title_short | Simulation programme for oil palm LAI and yield prediction |
| title_sort | simulation programme for oil palm lai and yield prediction |
| url | http://psasir.upm.edu.my/id/eprint/39395/ http://psasir.upm.edu.my/id/eprint/39395/1/39395.pdf |