Citation
Salmah A. A., . and Azima A., . and Amaliawati A. L., . and Jamaluddin S., . (2003) Pesticide residues in Chinese mustard grown under open field versus netted structure planting system. [Proceedings Paper]
Abstract
A study was carried our to compare the pesticide residues degradation activity in vegetables which were grown under open field and netted structure system. Chinese mustard Brassica chinensis var. parhinesis communis was treated with chlorpyrifos with normal rate once a week and double rate twice a week and was harvested daily for a period of nine days. The chemical residues analysis was done using Gas Chromatography and Rapid Bioassay methods. There was almost 80 pesticides degradation activity for a first few days of the harvesting period which could be monitored by both methods. Chlorpyrifos residus in vegetables samples grown under netted structure were found to be higher than those from the open field for samples taken at the same period of harvesting. Rapid degradation of pesticide activity for both treatments was observed before the third day of harvesting. The trend of pesticide degradation activity in Chinese mustard grown under open field versus netted structure planting system were found to be identical whether it was analysed by analytical instrument Gas choromatography or by Rapid Bioassay.
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Abstract
A study was carried our to compare the pesticide residues degradation activity in vegetables which were grown under open field and netted structure system. Chinese mustard Brassica chinensis var. parhinesis communis was treated with chlorpyrifos with normal rate once a week and double rate twice a week and was harvested daily for a period of nine days. The chemical residues analysis was done using Gas Chromatography and Rapid Bioassay methods. There was almost 80 pesticides degradation activity for a first few days of the harvesting period which could be monitored by both methods. Chlorpyrifos residus in vegetables samples grown under netted structure were found to be higher than those from the open field for samples taken at the same period of harvesting. Rapid degradation of pesticide activity for both treatments was observed before the third day of harvesting. The trend of pesticide degradation activity in Chinese mustard grown under open field versus netted structure planting system were found to be identical whether it was analysed by analytical instrument Gas choromatography or by Rapid Bioassay.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Received on 3 Dec 2007 QK710.2 M239 2003 |
| AGROVOC Term: | MUSTARD |
| AGROVOC Term: | PESTICIDES |
| AGROVOC Term: | RESIDUES |
| AGROVOC Term: | BRASSICA CHINENSIS |
| AGROVOC Term: | GAS CHROMATOGRAPHY |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:13 |
| URI: | http://webagris.upm.edu.my/id/eprint/11075 |
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