Ooi, Loo Ling (2007) Residual activity of metsulfuron-methyl and triclopyr applied in combination with glyphosate-ipa in Bekenu series soil. [Project Paper] (Submitted)
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Abstract
An experiment was conducted in a netted-greenhouse located at the University Share Farm, UPMKB, to study the residual activity of metsulfuronmethyl and triclopyr applied in combination with glyphosate-IP A in Bekenu series soil. Herbicide treatments were metsulfuron-methyl plus glyphosate applied at three rates (15 g/ha + 0.5 kg/ha; 30 g/ha + 1.0 kg/ha and 60 g/ha + 2.0 kg/ha), and triclopyr plus glyphosate applied at three rates (0.15 kg/ha+ 0.5 kg/ha, 0.30 kg/ha + 1.0 kg/ha and 0.60 kg/ha+ 2.0 kg/ha) and one untreated control. Seeds of three bioassay species, rice (Oryza sativa var. ARC2), tomato (Lycopersicon esculentum) and cucumber (Cucumis sativus) were sown into germination trays at each planting date from 1 day after herbicide treatment to several weeks after treatment. The percent inhibition, root and shoot lengths were recorded. There were significant differences in shoot and root lengths of the three bioassay species only at 1 day after treatment. Overall, the results indicated that triclopyr 0.60 kg/ha+ glyphosate 2.0 kg/ha showed the highest percent inhibition on cucumber, tomato and rice shoot lengths compared to the other treatments. Metsulfuron-methyl plus glyphosate at all rates also had some effects but the inhibitory effects were less. Cucumber was the most suitable bioassay species compared to tomato and rice to monitor the carryover effect of both triclopyr and metsulfuron-methyl.
| Item Type: | Project Paper |
|---|---|
| Faculty: | Faculty of Agriculture and Food Sciences |
| Depositing User: | Mr. Azman Mohamad |
| Date Deposited: | 17 Dec 2024 07:04 |
| Last Modified: | 17 Dec 2024 07:04 |
| URI: | http://psaspb.upm.edu.my/id/eprint/2297 |
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